Comodo updates corrupted rules, blocks applications

Twice this year I’ve had a rule that stopped working properly after a Comodo update.

The first one was for my video conferencing. I was able to attend my meeting late by using the Gaming Mode. Later, I deleted the applications rule and let it be created again when the application ran. This resolved the issue.

This time, the VMNAT rule malfunctioned. I have not touched this rule nor altered my VM configurations in ages. After the Comodo Update, the VM would no longer connect. After much wasted time rebuilding the VM networking, adjusting Comodo rules, reverting to a backup, I found it was the HOST vmnat rule that, although unchanged and configured properly, was blocking connections.

Advise exporting all Comodo rules before updates and importing again, just to be sure.