QNAP QTS 4.4.1 Causing Roon Crashes?

I’ve been running Roon Server on a QNAP TS-677 for 6 months or so. It’s never crashed.

About 10 days ago I updated the QNAP QTS software to version 4.4.1 1064 and since then I have had 3 Roon crashes, i.e. no Roon remotes can connect to the server and the only way to fix it is to restart the server process on the QNAP.

Nothing else has changed in my setup.

Anyone else updated to QTS 4.4.1 and had similar problems?

Cheers
Jamie