https://bugs.winehq.org/show_bug.cgi?id=55537
--- Comment #3 from Rafał Mużyło galtgendo@o2.pl --- Still not really a bug report, though at least first step to make it look like one had been taken...
With that little info it could still be anything, but it sounds like it could be a missing font problem. Check if relevant debug channels say anything about it.