For 218 users:
I have been experiencing dropouts for quite some time.
A while ago, I opened a support ticket with Roon regarding the issues with both internet radio and audio streams.
My 218 is running the latest firmware.
Roon's technicians have been working on a solution for a while, but so far, they haven't been able to resolve it.
I suspect an update from Roon or Tidal (or both) is the culprit.
I would like to ask you to contact Roon as well and clearly report your issues.

Meridian DSP 7200SE + Gaia 2
Meridian 218 + Farad 3 TMCB + Roon + Tidal
Meridian G98 Meridian MC 200
Gigawatt PowerPrime
Adot Oni 100