Cam bearing issue

Sliding the cam in when assembling, sliding it out on tear down. How does it go in with no issues and then come out tight? Or did it go in tight also? How can the wear only be showing on the lower part of the bearings? Babbitt deformation on the lower part of the bearing and then trying to slide the cam out as the journals hang up on the remaining Babbitt material on the forward edges of the bearings, is that what you encountered as you tried to slide it out?