I just transferred my A340 and A350 to the inimanager and now they won’t load in. I can see the plane from the loading screen but it won’t enter into it

Takes a VERY long time to load for the first time. I've seen up to 15-minutes. Sometimes it helps if after you've waited 2-3 minutes, hit ESC and try spawning again.

 

If you are still having issues, try initially loading in at GVAC, it's an island in the Middle of Nowhere so it should reduce any extra loading on the system during the initialization of the aircraft. It does take a decent time for me for A350 to initialize on first time and updates, A340 not as long. Also make sure you disabled both of the Marketplace versions of the aircraft in the Content Manager as this isn't done automatically with the transfer. It just enables the product on the account in the manager. Thank you.