OGL not working on Gate installation

[maikeros]

Hello,

I installed Gate on my Ubuntu with snap. Now OGL is not working. Maybe it's not installed properly.
When I try to use: /vis/open OGL it states: -------- WWWW ------- G4Exception-START -------- WWWW ------- *** G4Exception : UIMAN0123 issued by : G4UImanager::ApplyCommand “OGLSQt” is not compatible with your chosen session, and no fallback
system found. Error code : 1 *** This is just a warning message. *** -------- WWWW -------- G4Exception-END --------- WWWW -------

-------- WWWW ------- G4Exception-START -------- WWWW ------- *** G4Exception : UIMAN0123 issued by : G4UImanager::ApplyCommand Invoked command has failed - see above. Available graphics systems are
(short names): ATree DAWNFILE HepRepFile OGL OGLI OGLIQt OGLS OGLSQt RayTracer
RayTracerX VRML2FILE gMocrenFile Error code : 1 *** This is just a warning message. *** -------- WWWW -------- G4Exception-END --------- WWWW -------

And I tried to install OGL with: sudo apt-get install libglu1-mesa-dev freeglut3-dev mesa-common-dev
But it did not make it work. Do you have any ideas?

Thank you and kind regards!