Continius wave patterns and ripple effect? how?

i have got myself a k95 rgb nordic

i havve play´d around with the lighteffect buth what ever i do i cant get the effect to repeat continius.

for an example

I make a "rainbow" with 5 colours. and i get it to repeat it self.

buth it goes from say red-blue-green-yellow-red then black then its start over.

how do i get the effect to repeat directly and not with a blackout time?

i have try´d with multiple settings i have try´d more groups buth i can´t get it to keep repeating it self without the blackout. i have seen some videos that have it smoth with no blackout time.

any one know how it´s done?

i have try´d google it try´d finding a tutorial on youtube. buth no luck. :) please help me :)