Problem with Turntable leveling?

If a good level says that your turntable platter is (level), the problem lies elsewhere. I once had a Rega arm that did this. I've also had tables where the plinth was not perfectly level when I leveled the platter and THAT affected the arm. I couldn't detect any audible problem, though.

Even if the platter is level and the arm is level it's possible the arm rest upon which your arm is lifted is a bit off level. This certainly could not impact playback at all

The cue bar that lifts the armtube may not be parallel to the record and might cause the arm to move outward.

The cue bar might be rotating slightly when the piston raises it. They have anti-rotation locks, but can move a bit back and forth.

The cue bar might be loose.

The internal wiring, going through the pivot, might be dragging a bit and pulling the arm outward.

Antiskate may be high as previously mentioned.

I've seen all of the the above.

If you can cue up the record at a song you want to hear without the cartridge shifting as you lower it to the record you should be fine. Mine moves at times but everything else is correct with the alignment so I do not worry about it.