Prints fail at 4" tall.
I have an Ender 3 v2.
Whenever a print reached about 4 inches it starts to stutter and have lines like in the pictures. No problems until it reaches about 4 inches tall. I thought my Z axis was off but it is straight and working fine. Goes all the way up and down without problems and z axis screw is vertical.
Any help or suggestions would be appreciated.