I'm having this issue where the print is failing when it gets near completion, see the pick below. Its almost like its jumping a tooth on the belt, sometimes it looks like it gets offset on a plane. I'm wondering if its due to the the vibration and the flex on the build plate supports. These parts are pretty narrow so the print head is changing direction pretty quick for infill. I've tried this with 50% and 100% infill and had similar results, I also leveled the build plate before hand to see if that helped. I'm thinking about removing the second extruder incase its dragging or hitting due to flex and causing the print head to collide with the print and jump a tooth.

What do you guys think could cause this? (Printing on a Replicator 2X with ABS)