Strange rotation/position issue

Unity Engine
1

Hi.

Scenario:

Iv been fiddling around with primitives in the editor. I find this an easy way to lay out a scene without having to create or import lots of assets. It makes it quick and easy to see if a particular design is going to work (Can I see too far past this building etc).

Problem: I have noticed for a little while now that if I drop several primitives into an empty object, and then create a prefab from it, when I re-use the prefabs, often if I rotate them, most especially around 90 degrees, once they are positioned and left alone, when I go back the angle is no longer 90 degrees, its 90.00001 degrees.

This also seems to happen (sometimes) with positions.

Prime example (a few minutes ago):
I use six quads to create a cube so that I could have different colours on each side (on two sides really, its a wall).
It worked fine.
I created a prefab out of this ‘Qube’ and began using it.
A period of time later I dropped into play mode with an FPS controller so I could take a closer look at things from a play perspective and found that in multiple instances the quads making up my Qubes had moved, adding this .00001 to positions and naturally leaving teeny gaps between my quads.

Questions:
Is this just me?
Am I doing something to cause this?
Is there something I can do to prevent it?

Sorry if this is something obvious, but its got me stumped right now!

Regards

Max

2

Hmm, might have to use code to get absolute 0s?
Are tiny gaps really an issue?

3

Perhaps that could work, however it seems a bit strong to have to write code just to get things to stay together as they are originally placed in the editor, and yes, tiny gaps are really an issue.

Imagine a crate where the sides are not quite touching. Not good. Imagine a pillar in the middle of a room where the sides are not quite touching. They cause a kind of flashing as the camera moves past the two objects that are not correctly aligned and of course if there is light behind them, it shines right through the gap.

This is an issue that does not include code. Simply aligning things in the editor should be exactly that and not require code to keep them aligned.