Sharing ZC app w users, then deleting those shares, then adding new shares fails

Sharing ZC app w users, then deleting those shares, then adding new shares fails

I shared an app w two users (my limit for this presently free version), then I deleted those sharings, then tried adding another and am told " To share more users Upgrade your user plan"

I think the program is not adjusting the number of shared users when they are deleted, so the program thinks I am still using my maximum # of shares.

Could you please verify this, and fix if I am correct?

Thanks.