When I'm in fullscreen and I try to apply any change in graphics settings (besides texture quality, brick fx quality, physics, etc.) while on a server; the game crashes.
These are the last lines of the console log:
Video::setScreenMode 1920, 1080, 32, 60
OpenGLDevice::setScreenMode 1920 1080 32 60 1
safeModeOn = 1
fixedFrame size = 3
caption size = 22
maxWindowWidth = 1913
maxWindowHeight = 1051
Setting screen mode to 1920x1080x32@60hz (fs)...
Already at this resolution
Flushing texture cache...
After that "flushing texture cache" the game crashes. It often crashes at different points; all either after the flushing message or on that message.
This doesn't happen in windowed mode and I haven't tested if it happens in borderless.