I have been giving thumbs up to photos of roses and when I go back to check on them the thumbs up doesn't show on any of them. I've been noticing it the last few days but didn't pay attention until just now and checked to make sure I haven't lost my mind.

I just tried and it worked fine for me. You might try a restart of your computer.

Ok, that fixed it. It's rare that I need to restart my computer for something but since it worked no complaints.