Hi there, I had the same issues with V30. Tried to launch PSX roms and was kicked back to main screen after some seconds. The only way to solve it, was to remove the BIOS files.
I’ve tried all different kinds of BIOS Packs that are spreaded among the internet.
Today, I’ve upgraded to the new V31 RC1 (upgrade_manually [Batocera.linux - Wiki]).
This has fully resolved the problems and I can use all the well known BIOS packs.
It might be worth to mention, that I could only try PCSXRearmed, because the graphics card in my IBM T60p supports OpenGL 2.0 only.