Issue Installing Apps on Watch

I purchased a "new to me" phone yesterday and decided, while I was at it, to do a fresh setup on my watch (6).

Watch setup fine, but only installed about 1/2 of the iPhone apps that were available, with remaining showing available to install.

Whenever I go to install one of the apps, I'm asked to double click the Watch side button to install. After I click, the Watch says processing, while the app circle spins in the Watch app on the phone, but then stops and lists the app to install.

I've already reset the watch 3 times, thinking it was an issue with the pairing, but no success.

There's plenty of space available (24.49 GB) and all of the other watch functions are fine. I even slowed down the Double Click speed, but still nothing.

Please help!