After an inplace upgrade van server 2016 to server 2019 and fully patching the 2019 server it keeps coming with a BSOD on dedup.sys. Further analysis shows that it seems to happen when MP4, AVI or PST files are opened which are over 1GB. Possibly excluding these extentions help (currently testing this temporary fix)
The same happens on the VEAAM backup server trying to restore one of these files to a randomly choosen location (even local not dedupped disc) because it uses VSS on the offending fileserver.