Zone Symbol unintentionally changed into a Headphone icon

Hello dear Roon friends.

Yesterday I have updated to the latest Roon version with OPRA, wich I tried out just for a short moment to find out, how it works. Today, the Zone Symbol of one of my output devices – a eversolo DMP-A8 – has unintentionally changed into to a Headphone symbol. Interestingly, in the setup window, there is still the correct symbol.

I only tried it once with the eversolo, not with other devices/zones. Symbols of other devices in my system haven't changed.

How do I get back the correct device symbol?

Open the OPRA filter in the DSP for that zone and clear the filter for the selected headphone there.

Thanks for your reply.

When I started up the device today and checked in Roon, the correct symbol was visible again. Without me having actively deleted the filter beforehand.