With OBS compiled from 54892b27d and wlrobs from fa1757e6ba0b. I get this crash when somehow previewing a "dmabuf" screen. Before, I was using wlrobs from 02e7fd0062af, and after some OBS update, it got all white, and with flickering, that's why I've updated to the latest.

Here is the GDB backtrace:

info: User added source 'Wayland output(dmabuf)' (wlrobs-dmabuf) to scene 'Scene'

Thread 44 "libobs: graphic" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fff23c0a640 (LWP 364985)]
0x00007fffc81d0a10 in device_get_texture_type () from /usr/lib/libobs-opengl.so.0
(gdb) backtrace
# 0  0x00007fffc81d0a10 in device_get_texture_type () at /usr/lib/libobs-opengl.so.0
# 1  0x00007ffff5e7226f in gs_draw_sprite () at /usr/lib/libobs.so.0
# 2  0x00007fff203fbfd4 in  () at /usr//lib/obs-plugins/wlrobs.so
# 3  0x00007ffff5ea2eb0 in obs_source_video_render () at /usr/lib/libobs.so.0
# 4  0x00007ffff5ed93da in  () at /usr/lib/libobs.so.0
# 5  0x00007ffff5ea2eb0 in obs_source_video_render () at /usr/lib/libobs.so.0
# 6  0x00007ffff5ea9da6 in obs_transition_video_render () at /usr/lib/libobs.so.0
# 7  0x00007ffff5ea2eb0 in obs_source_video_render () at /usr/lib/libobs.so.0
# 8  0x00007ffff5ed5ec5 in obs_view_render () at /usr/lib/libobs.so.0
# 9  0x00007ffff5ede98c in obs_graphics_thread_loop () at /usr/lib/libobs.so.0
# 10 0x00007ffff5edfdb9 in obs_graphics_thread () at /usr/lib/libobs.so.0
# 11 0x00007ffff4eb9299 in start_thread () at /usr/lib/libpthread.so.0
# 12 0x00007ffff4de2053 in clone () at /usr/lib/libc.so.6