UDP packets can *not* be received

[rdlh]

Hi there!

First, thanks for the amazing jobs you guys have made.

We're having an issue using ZUMBLE on a french 250+ simultaneous player server. Sometimes (that's the issue), players are stuck in the default Mumble channel and people can speak, but can't hear others. After a random number of login / logout, it just works.

The only thing we've found after some investigations are those logs for EVERY stucked player :

UDP packets can *not* be received. Switching to TCP tunnel mode

And seconds later :

UDP packets can be received. Switching to UDP mode.

We're using pma-voice lastest version and FiveM build 6231

Do you have any idea about how to fix this?

Cc @ChaosQK