Since a few days ago, I'm unable to open my DB. I tried with a known-to-have-worked back up and I get the same message:

I'm 100% sure of using the right password and 99% sure it is not corrupted.
Expected Behavior
Opening DB as usual...
Current Behavior
See screenshot
Context
Using up-to-date Arch Linux. It may have stopped working after a system update, but I'm not sure. I use etckeeper so I can gather more info, if you tell me what to look.
Debug Info
KeePassXC - 2.4.3-1
Operating system: Arch Linux
CPU architecture: Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz
Kernel: 5.3.5.arch1-1
Since a few days ago, I'm unable to open my DB. I tried with a known-to-have-worked back up and I get the same message:
I'm 100% sure of using the right password and 99% sure it is not corrupted.
Expected Behavior
Opening DB as usual...
Current Behavior
See screenshot
Context
Using up-to-date Arch Linux. It may have stopped working after a system update, but I'm not sure. I use etckeeper so I can gather more info, if you tell me what to look.
Debug Info
KeePassXC - 2.4.3-1
Operating system: Arch Linux
CPU architecture: Intel(R) Core(TM) i7-5600U CPU @ 2.60GHz
Kernel: 5.3.5.arch1-1