Possibly but I suspect unlikely. PL 5.2 has been out for a few days and no one else has reported this ‘feature’. I’d have expected someone like @Joanna, who does use Mac, to have posted something by now if it was a widespread problem.
I did notice this behavior yesterday, just after downloading the new DXO update. I use to work with DXO in a Picture’s subfolder and I have another parallel subfolder which is synchronized with my NAS Synology where all my pictures are stored. When I started the new DXO mac update to process my pictures, I immediatly noticed a big activity on my NAS synchronized folder. Then I noticed DXO were creating .dop files in this folders. I’m not exactly sure when this behavior has changed because I just restored the NAS synchronization this week end too (after 2-3 months KO since the last NAS software update) but I’m pretty sure it’s related with one of the last DXO update.
I just today downloaded 5.2 and did not notice this behavior, though it was only on the local machine and not attached externals or a NAS.
Mac Big Sur here… please keep us informed, and I will keep an eye out for this.
Curious if there is a fundamental difference amongst the same-name sidecars. Is one being dropped in a folder at one point in the editing, for example, then another being dropped later in the editing process?
My iMac run with Catalina end 2013 27 inches model. I don’t use directly (through USB) an external drive. The folder is a local one, synchronized with a network attached storage through “Synology Drive”.
DXO opens on the folder I’m working in and despite of this, it creates thousands of DOP files in these others directories, recursively.
Note that these settings make it necessary to initiate import/export/read/write sidecar files manually. This can feel boring at times, but it puts me in control, specially because I manage metadata outside of PhotoLab.