Can not update the Apple Watch to WatchOS 9.6 beta 3 because of the WatchOS 10 developer beta is set.

Hello,

I can not update my Apple Watch to WatchOS 9.6 beta 3 because it's saying that I have to update the iPhone first.

The Apple Watch is connected to my iPhone X with iOS 16.6 beta 3.

I think that the Apple Watch is set to developer beta for WatchOS 10 (free developer account) and I'm not able to set it back to developer beta for WatchOS 9.6.

Does anyone knows a work around for this?

Greets Dominic