We will have a scheduled downtime this weekend 8/9th of June to upgrade our instance to the latest Lemmy version.
It requires some smaller under the hood changes and testing, but shouldn’t take longer than 2-3 hours.
I’ll comment below when I can say more precisely what time this will take place.
I think the cross-post issue was fixed in 0.19.5 as well. As for the other issue in 0.19.5 (only on Chromium), can you make a bug report on the lemmy-ui github repo for it please?