Hello there Meg752, I have a question, from two articles (Shimmer-scale Dragon & Festival of Eggs - 2013) you've recently edited all categories vanished after your edit, did they for some reason disappear or did your remove them accidently? (I already re-added all the categories) O_O I'm confused for I don't think that you would remove them, that's why I ask to clear this up. ;)
Sorry to bring this up considering how old the topic is, but I recently discovered that the Shimmer-scale and Tinsel dragon pages were completely without categories, and after seeing this message here, I managed to trace it back to Meg 752 having removed the categories again after Nyastara re-added them. Please be careful in your edits in the future Meg, as it happened on 2 articles multiple times now! Happened on the Rosebud article too.