Drag & drop tokens from Compendium - not linked to monsters

Recently, when I have been dropping monsters into my games from the Compendium (D&D 5e), the tokens will not have their HP and AC linked, and will always default to a medium size even if the monster is Large or bigger. Confusingly, this only affects SOME monsters, and I can't identify the pattern - it doesn't appear to be linked to particular source books, or creatures already in my games. I'm on Firefox, on a Windows PC, and have cleared my cache, but the problem persists for most monsters. Anyone experienced anything similar, or have a fix?

Hi Mock M.,  This is a recent known issue that the Devs are tracking. Here is another thread where people are reporting this issue. Please file a bug report via the Help Center so that the Devs can track who is having this issue. 

Running into the same issue... It's quite annoying and has been going on for the last 2 weeks now.