Prints shift to the side

[zappa79]

I noticed that sometimes when I print with simplify 3D the prints after a while get shifted to the side, this does not happen in the Flashforge dreamer original program.

Can anyone give a clue to why this is happening?

[CompoundCarl]

I would start here:
https://www.simplify3d.com/support/prin ... salignment

[cosmith71]

There is a mechanical problem in the x axis. Something is catching and causing the belt to skip or the motor to stall.