Bombel

Hi everyone, Can anyone advise me why my printer at print time stops for about 1-2 seconds, and then prints on next paths? At this time, the material leaking and leaving a thick bruise. Gcode is from cura 2.3.1. Is there some parameter responsible for such behavior when printing? My printer is custom bowden h-bot 3d printer working on Replicape. Retraction is 6,5mm with 100mm/s. Below is a short video with problem: Sory for poor focus. In two the same prints printer stops in the same positions - the same places with leaking on the print. Any ideas? Whal gcode profile should I use? Now its reprap/Marlin.