Hi @Jo and @aegisgfx, the v017 is now in pre-release testing, we've hopefully fixed this issue as we've redesigned how the addon is packaged for supporting multiple different versions of python. The 016 and previous builds assumed a very small set of python versions based on the official release of 2.79 and the new 2.80 beta. We've now changed this so that blender builds with python versions ranging from 3.5.x, 3.6.x up to 3.7.0 are supported (where x can be any patch revision).

So, please get in touch if you would like a copy of the pre-release v017 addon for both bl 2.78, 2.79b official, 2.79 daily and bl 2.80 beta. I will be happy to send you download links so you can verify this issue is fixed for you :)