Strange issue on outside one one side and only vertically

[TTVert]

So i did check tightness of all drive components, belt, etc. and all was well. I did clean the rods just for the sake of it. I reprinted the bottom 25mm at 50% scale and at 100% scale and it did it again but not nearly as bad as the last time. I have a closeup of the problem side. Both images are the same side, one is the front half of the right side of cube and the second is the second half. The second half is perfect as you can see. Maybe this closeup will give someone a bit more to go on? I'm going to try to use the SD card to print another one a bit later and see what I get per suggestion. Does this close up give you guys any more info by chance?ThanksDave