For some reason I literally cannot edit pages on a wiki I am administrator on. Yes I have checked, i am not blocked, it's nothing like that. For some reason, when I click edit on certain pages it takes me to the editor, but I cannot edit anything. It's not like when you are blocked and everything is in source.
There is literally no bar line to type anything or delete anything, and if I click publish, everything on the pgae gets deleted. If I attempt to undo my previous edit, it will say the generic undo summary but deletes the categories of the page; only the top template banner remains.
I have literally no clue what is going on. Several of these pages have ben fine until today; the template has not had any changes.
This page is an example of what is happening. Starting from Feb 1, someone else made an edit on the page. I was going to as well but for some reason when I edited, everything was deleted. I attempted to undo this glitchy edit, which instead deleted all the categories. I was only able to fix it by rollbacking. I asked the other user, Jep Do Tenko, and as you can see by his edit, the same exact thing happened.
Okay. It looks like you are using the rich text editor (RTE) from a Windows 10 computer. Which browser are you using? The RTE doesn't work with Edge and should have been disabled. This has been discussed in the technical update threads.