no acces to my missions

Hello,
I'm unable to access and edit my missions.

I can access the application and edit older missions, but I can't access recent ones.
I'm using a Mac, and I've tried with Google Safari and Firefox, and it's the same.
However, my missions are accessible on my Smart Controller and iPhone.
I've tried with two different Macs, and the problem persists.
Can you help me?