When opening the System Settings in a RTL locale (Arabic for example), the view on the right (which is on the left in LTR locales) is empty and contain no categories. Screenshot: https://i.imgur.com/FRhpV3p.png
Created attachment 108723 [details] screenshot
Created attachment 108724 [details] bug not present unfortunately can't reproduce here with --reverse, as screenshot
Alright, it seems that this happens with some fonts only. I was using Droid Naskh Arabic UI when I filed this bug. Right now I'm using another font (Mada) which is a bit new, and the sidebar is showing things correctly. Even with Noto Arabic Naskh it's shown correctly. Not sure what could be the problem with Droid Naskh, should investigate later on.
Thanks for investigating. Looks like it's a font issue. Let us know if you can gather more evidence that this is on our side (e.g. that we're not handling certain fonts correctly). Until then, marking this as RESOLVED UPSTREAM.