Unable to use fex port

[network]

Good morning,

I have a really strange problem :

I added a fex to the fabric as usual, the fex comes online, but when I go in the tenant to add a port from the fex to the EPG's, the selection doesn't show the new fex interfaces.

The fex is in the inventory but can't be used in the tenants.

I have tried deleting the fex and recreating it with a different fex id as the switch is a member of a vpc pair, but it was not that.

this is very frustrating.....

Anyone already run into that ? the fabric is running 1.3.2

[network]

So the problem was a stuck cluster, one of the apic was added to the cluster but running 1.1.3.

Killing it and reinstalling it via the cmic solved the issue.