I've been having an issue with the advanced HTML editor and adding content to a page in the editor.
I would add content and it would appear and when I clicked on save or publish now I would either receive a server error message ( which told me nothing about the error ) or it ignored the change and reverted to the previous version.
Typing html into the editor worked intermittently but randomly wouldn't work.
The HTML markup was perfect, zero errors.
A developer and I checked the database and network traffic.
TinyMCE was passing the data to the server but the content wasn't being written to the database (content body part index table).
The problem seemed to resolve itself after four hours but neither of us could work out what the problem was, how it was solved and most importantly whether it will occur again.
Any ideas on what might have created this issue?