we use Epson BT-200 to show some tags, but all tags displayed up-side-down, and the compass is also work in reversed way as if the device rotated 180 degrees.
but things in HTML works well, only AR objects went wrong.
We will release a new version of our SDK quite soon and we improved the calibration for smartglasses in this release. There is a good chance that this will fix your issues.
Hope it will work for you!