Watchfolder conflict

This use to work perfectly in wavelab 8.5
I’m trying to setup a watchfolder where i’m saving 1 version of the file
at -23lufs and the other at 0db…
I’m auto-renaming version 1 by adding (-23lufs) at the end of the filename.
When verifying the watchfolder configuration I get a conflict message:
“The watchfolder … is configured to produce files with the same name and the same location.”
But they do not have the same name, since I’m renaming one of them…
What am I missing here ?

To check this, I would need that you send me your batch processor file and watch folder preset file.