Buildup on corners with ABS on Creator Pro

Hi everyone,I have successfully printed a few pieces with ABS so far, but this one is giving me a headache.There seems to be a lot of accumulation around the corners (picture). At one point, it becomes too much and the pressure from the head travelling over it knocks my piece off the bed.My extruder is at 230 C and my bed at 110 C. I print on a raft. My first layer speed is 20mm/s and the rest is at 40mm/s.I tried with the fan on and off and it doesn't change anything.I tried raising the retraction lenght a bit and it didn't change anything.Any tips?Thanks!