I don’t know if this is the good place for this and I know the theme is in active development. I just noticed this
Before, I reported a bug from this kind of issue but that is only affect on Android mobile device. Now I noticed I think the same infinity loading issue on Focused Sidebar theme every page where the loading spinner appears.
Hello Sam, The issue I reported here is when the loading spinner appear on the bottom and not just the next 20 posts load. It keeps always on the bottom and loop the loading without scrolling. This repeats until jumps to the end of the topic or page.
I see, I would love to fix but sadly a fix here is very low priority. Some time this year we will have sidebar integrated into core and we can address this fix then.