Can't use (MDL) brick groups as "custom bricks"?

mephoria

When I'm in the shader mixer, I'm given the option to save any brick -- including grouped bricks -- as "custom bricks". This would be great, except that in almost every case I'm unable to load that custom brick. I save them to the specified directory, but they don't show up in the Custom Brick list in the Brickyard, even if I explicitly refresh. When I save a primitive brick it almost always does show up, but there's limited usefulness in saving a non-custom brick as "custom".

I'd really like to be able to use the capability for my brick groups, as it would make modular composition and re-use much, much easier. Other discussions I've found on the forums indicate that this should be (or once was) possible, but nothing I try works. Does anybody know what's going on?

 

agent unawares

This is bothering me pretty badly too.