Remmina is a free and open-source remote desktop client for Ubuntu that allows you to connect to and manage remote computers using various protocols like RDP, VNC, and SSH.
Untill Ubuntu 24.x, Remmina works fine without any problem. But since Ubuntu 25.x, it’s crashes sometimes.
Problem has been found and an update is coming soon: https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/2106675
This is how I solved it until the update:
apt install apparmor-utils
aa-genprof /usr/bin/remmina
aa-complain remmina
Stop and start Remmina

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