https://bugs.winehq.org/show_bug.cgi?id=50031
--- Comment #5 from Olivier F. R. Dierick o.dierick@piezo-forte.be --- Hello,
Here is the relevant info:
What happened is that proton / wine just ignored our request to open the files as utf8 and was feeding us with row data. It was fixed by adding utf8 DOM in all our utf8 files.
Regards.