Doesn't work on different GND's

[PieterBosElectro]

I tried it on a demo project but is doesn't work if you have different kind of GND's.

There is something to say to exclude GNDA, but KiCad had al kind of GND's

[mairas]

Yes, this is actually mentioned in the README. :-) I am at the moment working on a board that has multiple isolated GND sections and I get these divine light rays as well.

The way I would fix this is to find the *GND* zones enclosing the via and then select the one with the highest priority as the reference ground for that via. It's not super-complicated but I'm super-busy and can't promise that'll happen right away.

[PieterBosElectro]

Ah I read it as different layers, as in layer 1 and layer 4 gnd zones.
Don't hurry too much, thank you very much for you work!