I have HDA that references other HDA. In documentation states that when it's placed in $JOB/HDA Houdini should find it without problem. And it works but... when this HDA is used inside UE with free Houdini Unreal Engine license it doesn't work. Also I have setup with PDG (TOPS) and any HDA Processor fails to cook. It works with HoudiniFX license but as soon as I disable this license referenced HDAs become invisible.
The question is: Is it bug and it should work or it works as intended and I need paid license.