Hello CountFireWalker,  I am sorry to hear that you have encountered this issue with adding spells to your character sheet.  Do you have the character sheet popped out?  Additionally, to rule out potential issues,  please carefully work through the following 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.       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!