FastSSS2 MatSetup(MEL) , when moving Mat in Hypershade - disconnects

[Marko_Margeta]

Good evening

I experienced today while setting up a Vray FastSSS2 material over a bunch of MEL commands, that when i move the material in the Hypershade window or click it, several nodes lose their connection to the material.
When moving, the "Overall Tex" as well the "Reflection" input loose the connection to the texture. If its afterwards manually reconnected, everything is fine.

Does someone know what might cause the issue?

all conncetions are made with:
connectAttr -f $Map1XYZ $Map2XYZ;

Maya 2016 Vray 3.6

Attached the picture with the MEL result before selecting the material in Hypershade.

Thank you

Kind regards

Marko

[yolov]

I can't reproduce this on my end. Can you post the whole script?
There's no reason for this to happen?
Does it happen with non-vray nodes, i.e. a lamber shader? It might be something on the Maya side, but it's difficult to tell.