Kustom is affecting my launcher

Every time I open the app or tap on one of my kustom widgets it resets my launcher to android o default. I use nova launcher prime on the galaxy s8+. I dont know if this is a bug with kwgt or something else but please help

I am not sure i understand, you are saying that clicking on a widget changes your launcher? This is totally not possible.

Well that's what happens, I don't know how it why

This cannot be related to KWGT, KWGT is just running an action that is then handled by the launcher, are you sure you properly set your default launcher?