My transmission is difficult to get into 1st gear

It seems like the transmission doesn't want to go into 1st or 2nd gear when it's not moving. It will go into 3rd or 4th when it's not rolling.
It has a brand new Hurst shifter, and it was rebuilt with the new parts to bring it up to the specks.
The A833 transmission was rebuilt befor it was used. When I rebuild it I had used the old synchronizer rings. Do you feel that this is the prolem.
Thank you...............Ted