For modules with a RtL script, the study notes pane becomes variable width, with the unfortunate result that any passage with a very long footnote causes the pane to be so wide as to require horizontal scrolling, the main biblical text being shifted so far to the right of the window.
The problem seems to be that the automatic word wrapping of notes text which occurs in LtR scripts does not come into play for RtL scripts.
First observed in the module GLK that I have installed manually, after extracting it from the download at http://gilakmedia.com/en/software
The module is for the Gospel of John in Gilaki, which is a minority language of Iran.
The issue is especially observable in John 1, as John 1:51 contains a very long note.