win 10 x64, I7 3.60 ghz, 16 gb ram, geforce gtx 970 4gb
..with that out of the way, i've been experiencing crashes on mameui since 185 or so,namely:
1) typing any game in the search bar longer than 3 characters, will crash mame. for example, i was looking for a samurai shodown game, i just typed "sam",and mame crashes.if I type "sa", the emu will still go,any other character after that will crash it
2)when highlighting a game,and suddenly choosing another one,(not running them, just clicking once on them,to see the history description etc) will crash the emu
3)the emu will start in a full screen,but the game list is shrunken to the left and impossible to see,unless i resize the windows.
none of these ever happened in the 10+ years i used mameui..