No more Arcam AVR control after core update

Hello,
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?
Regards,

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.