DMX - Two pool bulbs, one is sometimes too late?

[hg6806]

Hey guys,

I’ve here a Pool light control unit, called PLP-REM-350 to control 2 pool RGB bulbs.
It is possible to control it by DMX. Here are the only information in the datasheet:

I activated DMX at WLED and it works from the beginning. I can control the dimming and the colors.
BUT - the left bulb reacts directly, the right sometimes after several seconds.
Does anybody knows, why?

Thanx!

[hg6806]

I can just post one screenshot.
Here is the first page with DMX settings:

[hg6806]

And here the second one.