This problem seems to have been around for nearly a year, now: I cannot upload animated files. For my .gif file this is understandable; it's nearly nine hundred mibibytes in size. As a .webm it's 440 KiB; an MP4 is even smaller at 263 KiB. They "upload" (for a given value of the word) with some difficulty, with the download bar freezing at about one-third full, though after a refresh they do appear in my library. Trying to place them on the table changes the preview icon for the page, but they are otherwise nonexistant on the map itself; they cannot be selected and are not visible. These problems persist on both my preferred Waterfox and my family's Chrome. Nothing I have tried helps, including Roll20's steps to solve technical issues. - Browser: Waterfox 56.3 (64-bit) - Windows 6.1 (commonly known as Windows 7) Professional, Service Pack 1. - Javascript is enabled, although it doesn't show as such on <a href="https://supportdetails.com/" rel="nofollow">https://supportdetails.com/</a> . - No anti-virus. - No browser addons of note, and those I do use are disabled on Roll20 anyway. Running Waterfox in safe mode (all addons and extensions disabled) actually makes things worse. - Console log created to the specified guidelines; I logged in, switched to my library, pressed the upload button, and tried to upload my file. <a href="https://pastebin.com/p0jfUT5m" rel="nofollow">https://pastebin.com/p0jfUT5m</a>
