Yeah, I have the language changed for continuous exposure to help with familiarisation, as unfortunately usage is limited in the part of Ireland that I live. I imagine it is a rarity though and suspect even many people living in the Gaeltacht (Irish speaking areas) have theirs set to English.
Lemmy apps are going through a ton of development and quick transitions at the moment. Given this rapid development and the number of different client platforms that are showing up that devs didn't expect, there are going to be quite a few hiccups.
In general, looking to see if there is an app update and/or clearing cache has fixed many issues for me already.
Sorry for the generic "jUsT rEbOoT iT" response, but that is actually 100% applicable right now. Connect was completely broken the first time I installed it (bad gateway issues, not showing some content, etc..) but within a day or so, the issues were corrected.