Xcode 26.4 refuses to pair with my Series 4 iWatch

Watch has latest watchOS 10.6.2. Xcode tries to connect and fails. I insured that both the Mac and the watch are using the same WiFi network (2.4) - and the mac has no other network interface.

I have successfully paired to my iPhone and iPad. I quit and restarted Xcode. I close and reopen the "Devices and Simulators" window (to get it to retry). I restarted my watch. The watch is at 98% battery level.

Suggestions? [Or do I need to purchase a new watch?]

Xcode 26.4 refuses to pair with my Series 4 iWatch
 
 
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