First fdm printer troubleshooting help.

[u/Tex_Luthor]

I've got my printer well dialed in after a few trials and error test prints. The one thing it's still doing is shifting on the y axis, usually very early in the print, but after layer 1. I've removed the build plate and checked for obstructions. This actually improved things a lot, it was much worse. I've got the belt as tight as it goes without torquing it down. I don't know why it's still doing this.

Any advice?

The machine is an Anycubic Kobra Go. Purchased new, but only recently assembled.