One of my research panels went completely blank today as I was typing Ctrl-B to make some new text bold. I was able to identify the rtf file in an older secondary backup and copy it into the current folder to get it back, but I had a moment of panic. I was running v8.1 at the time. It’d be nice to be able to restore piecemeal from inside the program instead of having to do it manually like I did.
There have been no changes in this area. Is it possible you had an involuntary Ctrl+A before typing and wiped the content of the scene? If that was the case, a Ctrl+Z should have brought the content back.