Beta 1.6.13 causes connection issues with War Thunder and possibly for all other apps

[Zer0Key]

What happened:
War Thunder reports connection issues to game servers and heavy packet loss.
After a failed attempt to join a match with a "connection error", a second attempt will succeed but with heavy packet loss of up to 60% and ping fluctuations of >50ms.
Shutting down portmaster resolves the issue.

What did you expect to happen?:
No connection issues or packet loss.

How did you reproduce it?:
Launch the game and attempt to play a match.

Debug Information:

War Thunder Portmaster App debug.md All instances of public facing IP were replaced by 127.0.0.1

Portmaster Debug.md

Other info:
This issue possibly affects all connections but I don't have the technical knowledge to verify this suspicion. However, I've run into weird delayed and failed connections with multiple websites since switching to the Beta channel. Specifically speed tests will randomly fail with connection errors or will produce wildly varying results with re-tests. All of which disappears if I shut down portmaster.
Could be related to #1141