Board Thread:Support Requests - Getting Started/@comment-37069970-20200205092743/@comment-9605025-20200205162506

The reason why it doesn't work on some wikis is because local permissions impact the avatar upload process even though the avatar is a global thing. Here on Community Central, this should not be an issue. If you tried on Community Central and it did not work, then it is likely a different issue.

Uploading from mobile devices is fine. The issue it typically the image users are trying to upload. There is a size limit on avatars and most (if not all) images produced by mobile devices (whether by camera or screenshot) are much larger than this limit. As long as the image meets the restrictions for avatars, it shouldn't matter whether or not you are uploading from a mobile device.