Checked, and looks like the patch is still being tested internally, and piloted with a single customer who uses McAfee.
I've asked to provide you with the pilot fix as well. However, we cannot be sure if it will help with your antivirus. If it does not, please send us the crashdump.
We've seen different antiviruses affecting system behavior differently. Many of them are literally "braking" some OS functionality to make the life harder for viruses, however this obviously affects "normal" low-level applications like our change tracking as well. Best bet with any antivirus is to exclude CSV volumes from real-time antivirus protection, but unfortunately this may not disable that obfuscation functionality that causes us problems.