nanoDLP

I'm having trouble trying to print at 50 microns on a muve 1 printer.  Nanodlp prints fine at 100microns, but I can't seem to get it to do the 50 micron properly, it always comes out double the height it should.  I've been working on this for a couple weeks now, and the problem almost has to be in my nanodlp setup.   Here's an example of the polyhedron ball model, the one on top is the 100 micron, and the elongated one on bottom is at 50 microns, sort of looks like it's just printing out the 50 micron slices at 100 microns:

At this point I've done the following:

- removed all printer profiles and rebuilt from scratch, didn't help
- printed the same model with creation workshop at 50 microns, works fine
- same model prints fine at 100 microns with nanodlp
- sliced model with both slic3r and stomp, same result

So I'm about stumped on this one.  Any help is appreciated, thanks...

Greg

update - not sure what I did wrong on the img tag in my post, doesn't seem to work when I look at it in the forum, here's the direct link to the image if it's helpful:

https://drive.google.com/open?id=0B-BK2 … ExLYXN4VVE