Helvetica font on Musescore is a nightmare.

Musescore seems to really hate Helvetica, which I use a lot, unfortunately.
At first, it was fine. After a month of use, the software started to replace text set to "Helvetica"; font to other fonts like Arial. Most recently, it reverted back to Helvetica but ALL the text in Helvetica ALONE face the issue of being italicised even though the "italic" option is off. Toggling the "italics"; option changed nothing. I tried uninstalling and reinstalling Musescore but it seems that all my settings were still in place. Then I uninstalled every single font from the Helvetica font family. First time I restarted Musescore, Helvetica Regular was working but the other variations weren't. Then I closed and restarted Musescore. This time, only Helvetica Bold seems to exist.