I just went and tried it in my own game, in Chrome, and that worked fine. So, lets see if we can figure out why it's not working for you, specifically. Could you try it in a different browser, and see if that makes a difference. You've already done 2 and 3. I'm also interested to see step 4. Once the page is done loading, try to drag the maps again, then copy the whole console log and paste it here for me. 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!