I realized that if I hide a spotlight to exclude it … it´s still affecting my scene in krakatoa-renderings
That is because where Krakatoa originally came from (3ds Max), hiding lights has no effect on whether they illuminate or not - they have an off switch to be turned on and off explicitly.
We will have to fix this to follow the Maya conventions in our Krakatoa MY implementation.
Thanks for bringing this up!
EDIT: Logged as bug.
This has been fixed and will be in the next release. Thanks for the report!
The latest release that was posted to the downloads section now includes support for hiding spotlights.