Accepting ArcGIS Online group invitations leads to remaining stuck in the processing stage if the group name contains multibyte characters, and if the invited user is of the same or higher-level permissioned User Role than the owner of the group.

Solución alternativa

Use a group name without multibyte characters or ensure the invited user account has a lower-level User Role than the account that owns the group. Alternativelly, invite a user without sending a user invitation.

Pasos para reproducir