https://bugs.winehq.org/show_bug.cgi?id=51063
--- Comment #13 from Robbert van der Helm mail@robbertvanderhelm.nl --- I guess so (I also just noticed that there's a typo in the title).
If I or someone else ever figures out what's causing the more general issue of this software randomly not being able to find the sample library directories then I'll create another ticket.