I am pretty sure its not random and all splat models on low settings dont show up.
There is no direct fix on this.
The only thing you can do is to make a model and apply to texture on it by select id, like in this map: https://www.dropbox.com/s/1l08yuo6dq9s2gm/Splat_FullColor.SC2Map You can export the model from this map...
Thank it to kinkycactus he made the model and the example map.
oh okay, thanks, ill take a look at that one. I thought it was random cause I was messing with selection circles and put them on the splat layer. I would select a group of units and a few of them didnt have circles. Every time I reselected, it was different units that didnt have it.
The only splat that I found that would always show on low is the nuke one. So I guess theres something about it thats different, but I really cant figure it out. I imported into blender, didnt touch a thing, exported and then it ends up like any other splat where it will show up randomly. Guess I just have to switch textures in the editor.