Hi, I have tried to bisect the issue: it started at commit 03d64a49e83e81b8d6f5594d99e0a35cda52f0f0, the previous commit works fine. The commit contains lots of changes, but the bug comes from the included PhysX update. Using PhysX3PROFILE_x64.dll from before gets rid of the bug and seems to work even in 4.19.
Unfortunately, there are hundreds of changes to the PhysX code in that commit and the PhysX repository available from Nvidia does not have a smaller increment, either, so I wasn’t able to find the exact code change that triggered the behavior change. Still, I hope this information helps in resolving the issue.