Cannot Add Members = Useless – GroupMe Review

GroupMe is useful when creating groups that will evolve over time, adding and removing members. But the app often does not allow adding members with a repeated "failed to add member" message. Incredibly frustrating. I have yet to find a fix- not logging in on a web browser, nor restarting my device, or resyncing contacts has fixed the issue. This renders the app useless for my purposes. Fix it GroupMe.
Review by NJSorge on GroupMe.