User blog comment:MisterWoodhouse/Social Activity, the 2010 Editor, and Unpausing Migrations/@comment-39885705-20201002202127/@comment-1807002-20201002213407

There is a syncing issue, are you going between a Legacy Wiki and a UPC wiki? until fixed you have to switch each time.

Have you tried an alternate browser?

I just detest the UPC default editor, so I really feel for you X /