To all posting about this issue Please help the Devs solve this by working through every step of the following troubleshooting guide, which was posted by GenKitty of the Roll20 Mod Team. GenKitty said: Before we dive into the guts of the issue, we're going to need you to do
a few things for us, things that sometimes fix issues for users before
more extensive troubleshooting is needed. Can you please follow Steps 1-3
of our Solving Technical Issues checklist (confirm you're using the latest non-test version of Firefox or Chrome; turn off all extensions, addons, and anti-virus; and clear your cache) to see if
one of those components is causing the problem? We can only help if we
can recreate your issue, so it is important that you follow each step. If doing that fixes the issue, just let us know. Otherwise, move on to Step 4 , and we'll need all that information to further assist you.