Famous last words and all that. So first tried a random object gathered off the interweb. Typically this cuckoo seemed to hamper export even with everything I could think of corrected. Also, as an aside, weird issue with the independent buildings - when I import an independent building mdr into Blender none of the textures were linked despite all being there and in same folder as per SOP (happened on two different buildings - so by the rules of slack scientific proof - they'll all be t