No more Arcam AVR control after core update

After updating HA to the last core version (2021.7.1) I’m unable to control my Arcam AVR.
I tried to restore the integration, physically turning also off/on the receiver, but even it detects the device and the 2 entities I cannot control it.
Any suggestion?

Hi did you ever figure this out? I’m trying to integrate my AVR5 but it simply won’t add the device with the IP and port.