Same problem here, whenever i press it it doesnt appear. Actually it does, you have to minimise the window and its here, it just doesnt appear "in front" of the window but in the back. And sometimes i have to upload twice since when i mark them they dont appear on the upload list. Stuff on this forum is going strange since the original likes are gone.
Often such incompatibilities arise when the various web browsers are updated by Firefox, Safari, etc. WRF is always playing catch-up when the browser software companies upgrade their products.
A thought to keep in mind, the forum software is VBulletin and is a "paid for" product. The paid-up WRF club members subscriptions and sponsors help pay for the forum software etc and they also pay for the "free lunch" members and guests. So there is likely always going to be some lag between browser software updates and forum system software updates.
I collect, therefore I am.
Nothing in science can explain how consciousness arose from matter.