This is really weird. Is it possible that you were working on widgets on multiple tabs/windows or that other people were working on that too?
Does your site has any DB or Object caching system?
It’s possible another person was working on it, but I asked her and she said she didn’t touch it, but it’s possible I guess. There aren’t any caching plugins installed and I don’t see anything in the hosting cPanel. I just added it back and I’ll wait and see what happens.
Unfortunately WordPress doesn’t have any locking mechanism for widgets as it has for posts/pages. Moreover all the data of the widgets of the same type are stored in a unique record in the database, so problems may arise when concurrent edits occur on different widgets of the same type (even if it’s pretty uncommon).
Everything is still working fine. Thanks
