Library damage in FcpX after relaunch

This morning when launching FcpX it started with "open library" witch it haven't before due to when I finish a project I move it to external drive.

So start a new library and everything is alright

After relaunch FcpX the icon for the event folder is gone and can not open it,

Why is this happening? Did have a OS update the other day but have used FcpX after that without this issue.

What's more strange is it before, when you started a new library it started a event with todays date and now it start a event with the same name as the library. Have it bin any resent updates on FcpX last few days?

Thank you in advance for all help I can get....

I have a workaround, when I relaunch it an it says "the library is damage" I just click ok and start a new event, and that event stays when I relaunch again

Kind Regards

Magnus