Unable To Drag & Drop Any Spells From Compendium

As of yesterday I or my players cannot drag & drop any spells into character sheets or monster block sheets. Is there anyway my game is bugged & can be fixed? I have attempted logging out several times & using a different browser too.

Just checking: have you popped these sheets out into their own windows? Drag and Drop only works on an engaged window.

Yes I have.

You can change the default behavior in the settings tab of your game. I keep them engaged as the default and pop them out as needed with the button on the upper left. Let me know if that fixed the problem.

It fixed the problem for the player character sheets but no the monster sheets.

Check to make sure the monster is set up to be a spell casting npc. For instance, if I drag a spell onto a lich, the spell is added. If I drag it onto a goblin, the spell is technically added, but won't display. You have to go into the settings of the npc and click the option to make it into a spell caster: Before: After: Dreaded Goblin-With-A-Magic-Missile:

That was also done. Somehow it is linked to when it is given a token. Once the sheet is linked to a token I can no longer add spells.

Can you run through a test, step by step? My goblin example was linked to a token.

Yes I've been able to get it to work.