Shared prototypes are not available

Hello,

when I create a prototype and share it, I only share it to known email addresses. I do this for the design specs/handoff for developers.

But since last week, the developers no longer see the prototype in their overview. Access is also denied via link. This happened with 2 new accounts, older accounts can still access the prototype.

I'm talking about free accounts for developers via browser so that they can just look at the prototypes.

I need this function for work, without this function my team cannot work.

Anyone else have this problem?

Thank you.