Endpoint migration via API between two tenants last too long - Pending 24h

Hi all,

I'm migrating endpoint from one tenant to another using migration API. I have started Receiving Task and started Migration Job. I have got info on source tenant "Send endpoints to another tenant" and i have got info on target tenant "Allow endpoints to migrate to this tenant" however when I check migration status i get that all endpoints are in Pending state.  It has been for a while since they are in Pending state (almost 24h).

How long does it usually take to transfer 50 endpoints?

Is there a way to see why they are in pending state. So far, no single endpoint has been transferred.

Kind regards,

Nikola