Same issue here. I see "Testing..." in the Xcode statusbar but it does nothing. It seems to work when I turn off "Execute in parallel".

Have you found a solution for this? Might it just be that the sandbox environment is offline?

Apple asleep at the wheel. What else is new.

It worked for a while, now it is back to being broken... can't submit again.

The submit issue asside, seems production builds are extremely unstable. I have never seen so many crashes with nonsensical stack traces since we deployed swift concurrency in our retail build. This thing seems to be alpha at most.

Can't update my app even with Xcode 13.2.1

Here we are a few years later, still cant login to apple developer for more than a few hours...

Did you find a solution to this? Despite Xcode 13 advertising that it now supports array element binding via `ForEach($model.value) { $values in ...` it is also not working for me.