Laying down the exact same tile, if I press shift, it keeps the original UVs versus if I don't press shift it gets the global UVs. -- Per your response on my other UV issue, it sounded like it should always just be global UVs.

Also, during preview (i.e. when I'm dragging a tile around, before clicking), it's also previewing it with its local UVs, instead of the global ones.

Here's a quick video showing both issues: https://imgur.com/a/0zvf3iE 

There you can see that even though I'm placing the same tile, at the same size, that some of them are not getting the global UVs (which is obvious because the scale is very different).

The shift bug is a major productivity killer -- because it means that I can't press shift to lay down the same tile multiple times in a row, unless I want bad UVs. -- Also the preview issue is annoying, because it previews the tile incorrectly.