Earlier today out of nowhere PL9 started to behave strangely refusing to create virtual copies. I made a couple of attempts but then gave up and moved on with my editing. A couple of images and quite a number of local adjustments later I closed PL9. When starting PL9 again the edits from the earlier session were all gone, i.e. the images were as imported. The dop-files were still in the folder, but with the initial date (when the images were opened in PL9 the first time). I restarted PL9, restarted the Mac but was not able to get the edits back. Then I remembered that a similar thing happened the day before, with me blaming myself for making some weird mistake.
The positive thing is that PL9 now behaves normal again, the bad thing is that loosing edits without any kind of warning is a very bad thing to happen.
Any similar experiences or ideas of what could have happened?
Whatever the reason was, the important thing imo is to adopt a more cautious procedure, more cautious than ignoring the issue and continuing with edits, that is.
This could include the following (and more)
Let PL sit for a while and see if it comes back, maybe some other task is monopolising the processors and things will return to normal later on.
→ if possible/opportune, kill the offending app or task.
Try to export sidecars manually (via the file menu) and see if the files are updated and contain the latest edits
Inside the Documents folder. There are more issues: when sending an image to Nik Collection the returned image does not show up automatically, I need to force indexing of the image folder.