It's likely that they have not accepted their invitations yet – you won't see them on your team until they do.
No problem :)
I will sent a ticket because i tried again. Also a refresh doesn't work,
Thank you for your advice.
Thank you for your quick response.
I appreciate it :)
I used own emails and accepted them by myself. I tried multiple times. Maybe i had to be more patient. I will try again.
Thank you Eline,
I am not sure, but, are all the email ids on the same domain. I think, they need to be on the same domain like firstname.lastname@example.org. Kindly check
Sorry for my late reply. I was off for a while.
The test emails are on the same domain.
The problem is already solved. You need to not only accept the invitations in the emails you receive but also login into the test Mendix accounts and accept them there.
This was the problem.
Thank you for all the answers given.