5e OGL Spells are casting incorrectly (blank response)

Some of my PC's sheets are casting incorrectly. The spell will work if deleted, reimported from compendium (drag and drop) but then in a few minutes it won't work anymore and attempts at casting will spit out only a blank line in the chat. Any help would be greatly appreciated, as it's frustrating and slows play to have to constantly delete and redrop spells. 

PS I think it's only affecting spells that cast at higher levels, but could be wrong. For example, Hellish rebuke. It doesn't even ask what level I am casting when affected. Deleting and drag and dropping it back in will have it prompt me correctly the second time, until the issue occurs again. 

There was a large release yesterday which was affecting many areas of the site, please can you check again today. If the issue persists let us know and we'll move to full troubleshooting. It is also worth following these steps to eliminate a corrupted template issue: A game's Creator is often able to fix issues with their Text Chat by  clearing the Chat Archive  (note: not  clearing your current Chat Log ). A GM might want to copy/back up the Chat Archive before the Creator clears it.

I have attempted to clear chat archive and still have the same issue. For example, right now if In my Storm King's Thunder game, go to player Drana Moonbeam and attempt to cast fireball, it does not prompt me for the spell level, it just makes the chat notification sound and a blank empty line is displayed. 

Ziechael said: There was a large release yesterday which was affecting many areas of the site, please can you check again today. If the issue persists let us know and we'll move to full troubleshooting. It is also worth following these steps to eliminate a corrupted template issue: A game's Creator is often able to fix issues with their Text Chat by  clearing the Chat Archive  (note: not  clearing your current Chat Log ). A GM might want to copy/back up the Chat Archive before the Creator clears it. I have also tried removing and readding the spells again, and it will work for that open session, but as soon as I close it and re-enter, the issue returns. 

Thanks for the update, lets proceed with the triage so that a Dev can come and take a look for you: Could you please carefully work through the first three steps of our guide to  Solving Technical Issues ? Step 1: Make sure to use the right browser Please check if these issues persist when using both Chrome  and  Firefox. Step 2: Ensure that there are no extensions/addons interfering with Roll20 Please disable  all  add-ons/extensions  and  anti-virus programs. Step 3: Clear your cache If none of the above succeeds, please thoroughly work through  Step 4 .  (Don't forget the complete Console Log!) Thank you!