Hi @mark.hotchkiss,
Welcome to the Auth0 Community!
I recommend checking your network activity for the web apps in question and determining what might be causing the redirects to hang.
You might find our How to generate a HAR capture on an iOS device knowledge article useful for capturing network activity on an iOS device.
Let me also add that I have checked your tenant logs and found several successful login events. Are you still encountering issues with Chrome on iOS? If so, can you please share what Auth0 SDK you are using?
Thanks,
Rueben