Hi there,
I am having some trouble finding the root cause of my issue and wanted to see if anyone had any thoughts.
Basically, yesterday afternoon our CKEditor plugin decided to stop working properly. At first I was not able to edit any page, I would just get a spinning wheeling. After rebooting the server my instance is on, this issue was fixed but I got some other issues. When I go to edit a page I get an error related to require.js and CKEditor plugins in the network tab. I have not seen an error related to require.js or CKEditor so I am not sure what caused this.
I thought that updating the CKEditor plugin extension to the latest version would possibly fix this issue, but it only cause more issues. So I downgraded back to the version I was previously on.
I also read this post related to CKEditor. I was able to find the CKEditor jar files in my XWiki permanent directory, as mentioned in the post, so I do not think there is something wrong with the installation of the CKEditor extension.
One final thought is to update our instance to the latest LTS (currently on 10.11.9) to see if that would fix it, but have not gone down this route yet.
Any help or suggestions is greatly appreciated.