B&O support suggested to disable CEC on the HDMI with a PUC device. It seems that disconnecting CEC on the HDMI where my Panasonic Blue Ray with PUC is connected solved the issue. Neither the message „your B&O product has been disconnected…“ nor the lockout of the Beoremote One appeared after I disconnected CEC for this device in the B&O app. I strongly suggested B&O support to add this into the Support File regarding PUC (https://support.bang-olufsen.com/hc/de/articles/9445399681809-Was-ist-ein-PUC-und-wie-verwende-ich-ihn-mit-dem-Beovision-Theatre) or find a SW solution which switches off CEC on the HDMI where a device with PUC is active.
Regards
R Paul

Location: Wiesbaden / Germany