First things first...and I'm assuming you've already done this...but wash the bed SUPER well. Warm water and dish soap is your friend. I like dawn powerwash. It REALLY strips any greases and oils from the bed. Once it's washed wipe down with paper towel and clean again with either IPA or methanol. I find methanol does a much better job of getting rid of any residues. Now re-level the bed and double check you Z offset. Based on the pic it seems that one side of your bed is lower than the other side (maybe).
First things first...and I'm assuming you've already done this...but wash the bed SUPER well. Warm water and dish soap is your friend. I like dawn powerwash. It REALLY strips any greases and oils from the bed. Once it's washed wipe down with paper towel and clean again with either IPA or methanol. I find methanol does a much better job of getting rid of any residues. Now re-level the bed and double check you Z offset. Based on the pic it seems that one side of your bed is lower than the other side (maybe).