mediasoup 3.3.5 has been released. It fixes a crash that happens when using RTC over TCP in CPU high usage scenarios.
The corresponding issue is this one: https://github.com/versatica/mediasoup/issues/333
And here the commit fixing it: https://github.com/versatica/mediasoup/commit/49824baf102ab6d2b01e5bca565c29b8ac0fec22
Upgrade is highly recommended.
BTW a similar fix has been applied in mediasoup 2.6.18.