I have a HDA with two option input. I use two geometry importers in a top network. They try to load two geometry and both pass to the ‘waitall’ node, and pass input into the HDA Processor.
If any of the geometry is not existed, it will switched and return with a empty wedge work item. But these just one output, and I can not pass it to the second input of the HDA.

I use the ‘Custom Input File 2’ and set it both to `@pdg_output.0` or `@pdg_input.0`, and it not work. But if I expand the `@pdg_output.0` manually and write the direct path of the bego from the upstream, it work.

Is there anything I do wrong when `@pdg_output.0`? I try to create an attribute create node and use the `@pdg_output.0` it expand into path correctly.

Which version of Houdini are you using? Are you able to attach a .hip file?

I am using the 17.5.425. I add my hip file as an attachment.
I found sometime I recreate the HDA Processor it work OK. It seems I add the ‘henginedata’ string parameter broken the hda processor?
And the HEgnine Data always reordered when I reopen the hip file.