luis omar santos del prado

Hi, I am trying to batch convert mantra materials of kitbash models to materialx , I am using houdini 20.0 but the tool casts this error:
Error creating mtlx file: The attempted operation failed.
Invalid node type name for Node: /obj/KB3D_CyberPunk/matnet/KB3D_CBP_AtlasDetails
Error creating mtlx file: The attempted operation failed.
Invalid node type name for Node: /obj/KB3D_CyberPunk/matnet/KB3D_CBP_AtlasDetails
Error creating mtlx file: The attempted operation failed.
Invalid node type name for Node: /obj/KB3D_CyberPunk/matnet/KB3D_CBP_AtlasDetails
Error creating mtlx file: The attempted operation failed.
Invalid node type name for Node: /obj/KB3D_CyberPunk/matnet/KB3D_CBP_AtlasDetails
Node not supported: global
Node not supported: global
Node not supported: output
Node not supported: output
Node not supported: collect
Node not supported: computelighting::2.0
Node not supported: bind
Node not supported: output
Node not supported: output
Node not supported: collect
Node not supported: computelighting::2.0
Node not supported: bind
Error creating mtlx file: The attempted operation failed.
Invalid node type name for Node: /obj/KB3D_CyberPunk/matnet/KB3D_CBP_AtlasDetails
Node not supported: output
Node not supported: output
Node not supported: collect
Node not supported: computelighting::2.0
Node not supported: bind
Node not supported: output
Node not supported: output
Node not supported: collect
Node not supported: computelighting::2.0
Node not supported: bind

I wonder if this functionality works only for houdini 19?
or if I am doing something wrong
Thank you in advance!