Ros

OK, I cannot test today because no hardware with me. I will test and send you picture on next Tuesday (Monday is public holliday in france) thx for all.

> swapping ribbon cables just move the problem :  Result with the same image and without mapping :  The configuration : ```python...

Yes, if I swap chain2 with chain 3, stripes are displayed on all three panels. Stipes are displayed in cyan and not in white. I forgot to mention it but...