The mouse thumb forward/backward buttons -mapped as Button4 / Button5 Mouse- aren't working anymore. Any ideas where to investigate?
Otherwise the buttons are working e.g. $ xev
:
ButtonPress event, serial 35, synthetic NO, window 0x1000001,
root 0x114, subw 0x0, time 10644434, (1868,1507), root:(1868,1507),
state 0x10, button 3, same_screen YES
ButtonRelease event, serial 35, synthetic NO, window 0x1000001,
root 0x114, subw 0x0, time 10644649, (1868,1507), root:(1868,1507),
state 0x410, button 3, same_screen YES
Even in Firefox the buttons work flawless without any problems (forward/backward)
Tested on blender 2.93 / 3.1 (Linux)