Yeah it seems like the federation issues with 0.19 were NOT actually fixed with 0.19.1. It's not just us. There's a thread up about it on !fediverse@lemmy.world and the Github issue was reopened a couple days ago, but obviously at this time of year we'll have to be a bit patient.
Yeah, I noticed this behavior started on most .world communities about 3 days ago. Comments don't seem to be federating. A little frustrating, but we're going to need to be patient with bugfixes through the holiday seasons for now.
Oh so that's why nobody seems to see my comments on .world communities. I noticed a pattern where my comments on other instances are getting upvotes except for the ones on .world.