Vertical Banding Appears

Hey everyone, so my ratrig has been up and running for a month or so and it’s been great. I recently did this print and it turned out pretty good. Pla, 0.2mm layers.
This is shown in the first pic. Then I changed some slicer setting and the prints started getting vertical Banding, blob layer, etc. So I couldn’t figure it out and reloaded the old gcode and the print looks terrible. What could have caused this?
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