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Houdini to UE4 HDA error

Hi guys, I’m getting a strange error in UE4 houdini engine when trying to run a simple test.
I have two houdini hda’s, one for terrain and one with scattered points. When I import my hda’s into UE4, I get this error:

Cook Results:
Geo (ID: 2709): /obj/hda_scatter_1_2/hda_scatter1
No geometry generated!

Cook State:
Ready with Cook Errors

===================================
Node Errors, Warnings, and Messages

/obj/hda_scatter_1_2/hda_scatter1/maskbyfeature1:
Error: Not enough sources specified.

/obj/hda_scatter_1_2/hda_scatter1/maskbyfeature1/attribblur1/cl_compute_edgeweights1:
Warning: Zero sized attribute, doing nothing.

/obj/hda_scatter_1_2/hda_scatter1/maskbyfeature1/attribblur1/cl_smooth_generic3:
Warning: Zero sized attribute, doing nothing.

/obj/hda_scatter_1_2/hda_scatter1/maskbyfeature1/attribblur2/cl_compute_edgeweights1:
Warning: Zero sized attribute, doing nothing.

/obj/hda_scatter_1_2/hda_scatter1/maskbyfeature1/attribblur2/cl_smooth_generic3:
Warning: Zero sized attribute, doing nothing.

/obj/hda_scatter_1_2/hda_scatter1/points_trees:
Error: Not enough sources specified.

Any help would be appreciated, many thanks!