mrtoo So I am leaning there was a change to GOS to cause the requirement for all three google services.
Not how this works. If an app doesn't use GServices, it doesn't and that's it. There is nothing GOS could do to force requirement even if they wanted to (well technically they could put code to prevent you from installing any app until you install GMS but that's not what I was talking about).
The easiest thing you could do is uninstall the app and reinstall it then try to login. As this app requires an online account, i doubt you would lose any meaningful local data by doing this. Then, if the issue persist, it probably means the problem comes from your network/network configuration.