[0.0.8-RC3] Train loader deletes shapes when they have different orientations

[hidden furnace]

I was loading this shape "RuRgRuRg:SbSbSbSb" on multiple train loaders and I noticed that they were never "filling" the loaders like they usually do. It looked like it was detecting the shape for a few seconds and then the shape would disappear like it had been deleted or something.
After looking at my factory, I noticed that the square part sometimes came in different a orientation "RgRuRgRu:SbSbSbSb". So I added a few rotators to make sure it was always the exact same and it fixed the issue.
I think this is a bug. "Different" shapes should simply go in different slots of the train loader just like this screenshot where you can see two different shapes filling the different loaders.

[magic totem]

Not a bug, that's intended behavior

The "slots" are the floors

Every structure in the game other than the vortex cares about orientation, why would train loaders be any different?

[maiden marsh]

We are closing this report as "not a bug" in our system.