I've got entitlement running on the my apps in the Windows, iOS, and Android stores just fine but for some reason the sign-in doesn't work on the web viewer. Any ideas why? I can send dummy account info if you need.
Is it possibly related to the network settings on your Mac? I see you are using VMWare Fusion on a Mac. Is that the same Mac that you are loading up the web viewer on in Safari? This is my best guess so far, as I haven't seen this with other customers.
I also rechecked iOS, Android and Windows. iOS and Android worked fine, but now Windows isn't working (to be honest, I'm questioning whether I ever checked before now). Here is the message I get on the Windows App: