Vcore V4 400 IDEX + eSun ABS+ clogging

Hello,

i am trying to print a part with a lot of small 6 hexagons and i am not able to get past the first layer because of clogging.
First Layer temp. 235°
Other Layers: 250°
for the Other layers i tried temps from 230° until 260°
Even a simple Box anything higher then 1 mm is messed up

I have tried:
.) swapping toolheads
.) different first layer temps as well different other layer temps
.) slightly adjust bed temp

I have created a temporary case for the Vcore using 2 layer cardboard and i am reaching around 40 - 45 ° chamber temp.

I really have no more ideas what i can do to get this thing printed. Any suggestions, help appreciated!

Cheers