I have the exact same problem.
As described by Grafton, when using shade-c, view entities will not be visible, as soon as i render the scene into a bmap.
Tried everything i could think of to solve this problem so i can release a fix for shade-c, but so far i didn't have any luck.

If rendering view entities into render targets isn't possible at all at the moment, please consider releasing a fix in the future. It's not urgent as you can use workarounds, but it would be nice to have that feature some day