Grasshopper multi-channel mapping not working

[nachetz_dominguezadamerocandio]

Hi,

recently i've noticed that some Blend and Bump materiales didn't work correctly on grasshopper. Could it be because of multi-channel mapping issue?

thanks

[konstantin_chaos]

Hi nachetz_domingueza,

recently i've noticed that some Blend and Bump materiales didn't work correctly on grasshopper. Could it be because of multi-channel mapping issue?

Can you share some more details about this issue?
What kind of materials are you having problems with?
What does, don't work correctly, mean?

Regards,
Konstantin