Hi,
Mangu solved the issue.
You must power on the Sweet Sixteen after the Disting.
I've plugged it on another psu.
You can try this kind of thing:
https://www.modularsquare.com/shop/wmd/soft-start/
It's another solution.
I didn't try it.
Pull up enabled on the Sweet sixteen and disabled on the Disting.
Cheers