I had to dissable this mod manually in the json mods file, to prevent Factorio 0.16.1 crashing at startup.

Well damn, I wonder what they changed. It was working with 0.16.0 for sure...

EDIT: Might need a mod list for this one. Tested it with 0.16.2 and it works just fine.

Try this mod for icon_size error fixing: https://mods.factorio.com/mods/darkfrei/_IconSize

I should have already fixed any icon_size errors manually (there were really only 3 related to the machine itself, and a few in the logic of making reverse recipes), so that might not help. If it does solve the problem, then that means I missed something and it should be fixed on my end.

But as I said, it works perfectly fine for me in 0.16.2, so it must be some other mod causing the crash when used with this mod.

It works fine for me in 0.16.2 as well :)
Must have been a factorio bug in 0.16.1.
Saw in changelog that it fixed crashes related to loading zipped mods. So might have been that :)
SOLVED :)

Works fine in 0.16.12 for me...