hey keston, thanks for your reply. actually, I tried on 3 different hardware setups and different versions of houdini: houdini FX 16.0.557, houdini indie 16.0.600 and houdini apprentice 16.0.600 (not absolutely sure with build no. 16.0.600 but i think so - i can verify that later today). substance plugin is the latest one.
now on computers with houdini fx and indie, it did not work at all (I mean viewport or mantra rendered nothing and loading sbsar took more than a minute). with Houdini Apprentice thou (and same sbsar files), I had working viewport, sbsar file loaded almost instantly, but no luck with Mantra.
Graphic adapters (if that matters) were nvidia geforce gtx 1080, nvidia quadro 4000 M and nvidia quadro 2000 M (that one worked in viewport). CPUs were Intel Xeon and two quad core i7.
i tried few different sbsar files. I used some presets available in substance designer (specificaly bricks_005.sbsar and also few other ones). then I also tried couple of setups from other artists around here but those I can't share.
thanks for your help. D.