Message couldn't be decrypted. It may have been in this chat or a group chat. Please check your Signal app.

[fir3drag0n]

#552 still exists although I updated the version

[brknkfr]

I experienced exactly this behaviour when someone else adds a person to an existing signal group where I am member of. This causes the bridge to create an empty chat with the newly added signal person in the signal group.

[bblacher]

I'm facing this issue as well now.

[DevelAngel]

I see this error, too. But it happens only in one of my direct chats. Other signal chats are working.

In the chat with these messages, I cannot write any messages via signal bridge: The Signal app of my contact reports that the message cannot be received (in german: "Zustellungsproblem").

In the signal-bridge log, I find the following log around the time of the first occurance:

Mar 18 11:37:27 raspberry matrix-signal[2142]: chown: /data/registration.yaml: Read-only file system
Mar 18 11:37:27 raspberry matrix-signal[2142]: chown: /data/config.yaml: Read-only file system
Mar 18 11:37:53 raspberry matrix-signal[2142]: Error updating config: failed to override current config with temp file: rename ./mautrix-config-3778679396.yaml config.yaml: device or resou>
Mar 18 11:37:53 raspberry matrix-signal[2142]: 2025-03-18T11:37:53.584Z INF Initializing bridge built_at=2025-02-04T10:51:34Z go_version=go1.23.5 name=mautrix-signal version=0.7.5+dev.5c7c>
Mar 18 11:37:53 raspberry matrix-signal[2142]: 2025-03-18T11:37:53.634Z INF Initializing libsignal version:0.65.4 component=libsignal file=rust/bridge/ffi/src/logging.rs line=103
...
Mar 18 14:32:33 raspberry matrix-signal[2142]: 2025-03-18T14:32:33.553Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:33:42 raspberry matrix-signal[2142]: 2025-03-18T14:33:42.382Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:34:02 raspberry matrix-signal[2142]: 2025-03-18T14:34:02.944Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.304Z INF deserialized UnidentifiedSenderMessageContent from f20406fa-0f85-4462-8931-41204f0c01d5.1 with type Whisper comp>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.306Z INF f20406fa-0f85-4462-8931-41204f0c01d5.1 creating new chains. component=libsignal file=/builds/tulir/gomuks-build->
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.308Z INF Trimming excessive receiver_chain for session with base key f2ebf3535a8462e02d7c486c8c8c79b7baa3e848121221f28a20>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.308Z WRN Bad Mac! Their Mac: cba0b0b49ffca27d Our Mac: 1d27c3d0854df7f4 component=libsignal file=rust/protocol/src/protoc>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.312Z WRN Failed to decrypt Whisper message with ratchet key: e7eddafd8fb2b35003d3d591c55839a77c3b1ab440b1b04fac7adadc7034>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.313Z ERR No valid session for recipient: f20406fa-0f85-4462-8931-41204f0c01d5.1, current session base key f2ebf3535a8462e>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.313Z ERR Message from f20406fa-0f85-4462-8931-41204f0c01d5.1 failed to decrypt; sender ratchet public key e7eddafd8fb2b35>
Mar 18 14:36:33 raspberry matrix-signal[2142]: Candidate session 0 failed with 'invalid Whisper message: MAC verification failed', had 5 receiver chains
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b2cff49f90e5d0ed2494fdb805642fcbec9bcb4b36a04f0afcfca0a0d3342e19 chain key index 12
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b0a55b46efc930d4ce0e275680fb0a3890d0b44a0bb168b4f6b29f8a8982b662 chain key index 9
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05f57a7f2a8b0a9e84debd134997afacf6cdfbdcea7fcb20db5096b7fd4cff9448 chain key index 15
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b31a51532d5db0f8de8a8704285e2f190c6873d159b788c0e5c631732ced9e49 chain key index 5
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 0548656e6c422b990f5c9da261961c72f874d9a9343ce2f1552c914c7cc3407213 chain key index 1 component=>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.314Z ERR Failed to decrypt whisper message, trying generic function error="30: invalid Whisper message: decryption failed>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.316Z INF deserialized UnidentifiedSenderMessageContent from f20406fa-0f85-4462-8931-41204f0c01d5.1 with type Whisper comp>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.319Z INF f20406fa-0f85-4462-8931-41204f0c01d5.1 creating new chains. component=libsignal file=/builds/tulir/gomuks-build->
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.321Z INF Trimming excessive receiver_chain for session with base key f2ebf3535a8462e02d7c486c8c8c79b7baa3e848121221f28a20>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.321Z WRN Bad Mac! Their Mac: cba0b0b49ffca27d Our Mac: 1d27c3d0854df7f4 component=libsignal file=rust/protocol/src/protoc>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.322Z WRN Failed to decrypt Whisper message with ratchet key: e7eddafd8fb2b35003d3d591c55839a77c3b1ab440b1b04fac7adadc7034>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.322Z ERR No valid session for recipient: f20406fa-0f85-4462-8931-41204f0c01d5.1, current session base key f2ebf3535a8462e>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.323Z ERR Message from f20406fa-0f85-4462-8931-41204f0c01d5.1 failed to decrypt; sender ratchet public key e7eddafd8fb2b35>
Mar 18 14:36:33 raspberry matrix-signal[2142]: Candidate session 0 failed with 'invalid Whisper message: MAC verification failed', had 5 receiver chains
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b2cff49f90e5d0ed2494fdb805642fcbec9bcb4b36a04f0afcfca0a0d3342e19 chain key index 12
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b0a55b46efc930d4ce0e275680fb0a3890d0b44a0bb168b4f6b29f8a8982b662 chain key index 9
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05f57a7f2a8b0a9e84debd134997afacf6cdfbdcea7fcb20db5096b7fd4cff9448 chain key index 15
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b31a51532d5db0f8de8a8704285e2f190c6873d159b788c0e5c631732ced9e49 chain key index 5
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 0548656e6c422b990f5c9da261961c72f874d9a9343ce2f1552c914c7cc3407213 chain key index 1 component=>
M

That the registration.yaml and config.yaml is read-only mounted is not the reason for this error. But there are Bad Mac messages.

[ethnh]

I see this error, too. But it happens only in one of my direct chats. Other signal chats are working.

In the chat with these messages, I cannot write any messages via signal bridge: The Signal app of my contact reports that the message cannot be received (in german: "Zustellungsproblem").

In the signal-bridge log, I find the following log around the time of the first occurance:

Mar 18 11:37:27 raspberry matrix-signal[2142]: chown: /data/registration.yaml: Read-only file system
Mar 18 11:37:27 raspberry matrix-signal[2142]: chown: /data/config.yaml: Read-only file system
Mar 18 11:37:53 raspberry matrix-signal[2142]: Error updating config: failed to override current config with temp file: rename ./mautrix-config-3778679396.yaml config.yaml: device or resou>
Mar 18 11:37:53 raspberry matrix-signal[2142]: 2025-03-18T11:37:53.584Z INF Initializing bridge built_at=2025-02-04T10:51:34Z go_version=go1.23.5 name=mautrix-signal version=0.7.5+dev.5c7c>
Mar 18 11:37:53 raspberry matrix-signal[2142]: 2025-03-18T11:37:53.634Z INF Initializing libsignal version:0.65.4 component=libsignal file=rust/bridge/ffi/src/logging.rs line=103
...
Mar 18 14:32:33 raspberry matrix-signal[2142]: 2025-03-18T14:32:33.553Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:33:42 raspberry matrix-signal[2142]: 2025-03-18T14:33:42.382Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:34:02 raspberry matrix-signal[2142]: 2025-03-18T14:34:02.944Z INF decrypted Whisper message from 39315383-6236-495a-abea-aea168192815.1 with current session state (base key 3bda1>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.304Z INF deserialized UnidentifiedSenderMessageContent from f20406fa-0f85-4462-8931-41204f0c01d5.1 with type Whisper comp>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.306Z INF f20406fa-0f85-4462-8931-41204f0c01d5.1 creating new chains. component=libsignal file=/builds/tulir/gomuks-build->
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.308Z INF Trimming excessive receiver_chain for session with base key f2ebf3535a8462e02d7c486c8c8c79b7baa3e848121221f28a20>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.308Z WRN Bad Mac! Their Mac: cba0b0b49ffca27d Our Mac: 1d27c3d0854df7f4 component=libsignal file=rust/protocol/src/protoc>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.312Z WRN Failed to decrypt Whisper message with ratchet key: e7eddafd8fb2b35003d3d591c55839a77c3b1ab440b1b04fac7adadc7034>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.313Z ERR No valid session for recipient: f20406fa-0f85-4462-8931-41204f0c01d5.1, current session base key f2ebf3535a8462e>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.313Z ERR Message from f20406fa-0f85-4462-8931-41204f0c01d5.1 failed to decrypt; sender ratchet public key e7eddafd8fb2b35>
Mar 18 14:36:33 raspberry matrix-signal[2142]: Candidate session 0 failed with 'invalid Whisper message: MAC verification failed', had 5 receiver chains
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b2cff49f90e5d0ed2494fdb805642fcbec9bcb4b36a04f0afcfca0a0d3342e19 chain key index 12
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b0a55b46efc930d4ce0e275680fb0a3890d0b44a0bb168b4f6b29f8a8982b662 chain key index 9
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05f57a7f2a8b0a9e84debd134997afacf6cdfbdcea7fcb20db5096b7fd4cff9448 chain key index 15
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b31a51532d5db0f8de8a8704285e2f190c6873d159b788c0e5c631732ced9e49 chain key index 5
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 0548656e6c422b990f5c9da261961c72f874d9a9343ce2f1552c914c7cc3407213 chain key index 1 component=>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.314Z ERR Failed to decrypt whisper message, trying generic function error="30: invalid Whisper message: decryption failed>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.316Z INF deserialized UnidentifiedSenderMessageContent from f20406fa-0f85-4462-8931-41204f0c01d5.1 with type Whisper comp>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.319Z INF f20406fa-0f85-4462-8931-41204f0c01d5.1 creating new chains. component=libsignal file=/builds/tulir/gomuks-build->
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.321Z INF Trimming excessive receiver_chain for session with base key f2ebf3535a8462e02d7c486c8c8c79b7baa3e848121221f28a20>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.321Z WRN Bad Mac! Their Mac: cba0b0b49ffca27d Our Mac: 1d27c3d0854df7f4 component=libsignal file=rust/protocol/src/protoc>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.322Z WRN Failed to decrypt Whisper message with ratchet key: e7eddafd8fb2b35003d3d591c55839a77c3b1ab440b1b04fac7adadc7034>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.322Z ERR No valid session for recipient: f20406fa-0f85-4462-8931-41204f0c01d5.1, current session base key f2ebf3535a8462e>
Mar 18 14:36:33 raspberry matrix-signal[2142]: 2025-03-18T14:36:33.323Z ERR Message from f20406fa-0f85-4462-8931-41204f0c01d5.1 failed to decrypt; sender ratchet public key e7eddafd8fb2b35>
Mar 18 14:36:33 raspberry matrix-signal[2142]: Candidate session 0 failed with 'invalid Whisper message: MAC verification failed', had 5 receiver chains
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b2cff49f90e5d0ed2494fdb805642fcbec9bcb4b36a04f0afcfca0a0d3342e19 chain key index 12
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b0a55b46efc930d4ce0e275680fb0a3890d0b44a0bb168b4f6b29f8a8982b662 chain key index 9
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05f57a7f2a8b0a9e84debd134997afacf6cdfbdcea7fcb20db5096b7fd4cff9448 chain key index 15
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 05b31a51532d5db0f8de8a8704285e2f190c6873d159b788c0e5c631732ced9e49 chain key index 5
Mar 18 14:36:33 raspberry matrix-signal[2142]: Receiver chain with sender ratchet public key 0548656e6c422b990f5c9da261961c72f874d9a9343ce2f1552c914c7cc3407213 chain key index 1 component=>
M

That the registration.yaml and config.yaml is read-only mounted is not the reason for this error. But there are Bad Mac messages.

Have you already tried re-linking signal? Just make a new blank data dir and redo the connection 🤔

If yes, bizzare😵

[laszabine]

I had the same problem, and re-linking Signal solved it.