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Well not sure if it's related but with my HmIP system and 12 rediator valves (HMIP-eTRV) I do see random similar problem (radiator reported as closed or very low open % like 10% and it's very hot, at the next room radiator reports 50% and just warm compared to the other one at 10%).
The issue is not persistent but I experience randomly in my setup (honestly I don't check alla radiators daily so I cannot provide more data...)
Also sometimes I've radiator a 0% as they are not supposed to warm that room but touching it I can feel they are warm/hot...

Hi,

you can only downgrade firmwares with a CCU - with AP not possible I think.

Here the older firmware for e-TRV2:
https://www.eq-3.de/Downloads/Software/ ... 171024.tgz

e-TRV:
https://www.eq-3.de/Downloads/Software/ ... 171024.tgz

Did anyone ever receive an answer from EQV regarding this? It seems the firmware is still the same (buggy) one, at least version wise...

Though I noticed the filesize has been changed... Nope. Checked the binary contents and nothing changed, it was the changelog which was German in one version, and English in the other.