Cura 13.10 undesirable effect, dual extrusion

[lobster2b 0]

Hi

I have printed my first dual print on my ultimaker using gcode from Cura 13.10 loaded onto the ulticontroller.

Now i encontered a slight mishap or just a glitch.

When next nozzle is up:

First nozzle stops at his last coord, retracts a significant amount of filament, then second extruder primes the second nozzle, then moves to his start point.

Result of this is that i got a nice strip of black color on my red structure.

I think the version before didnt do it, but im not 100%, though i have a print thats

Ive also noticed that on some layers, it switches filament one time more then needed.

This did not happen in the previous version of cura.