This geometry looks like it was imported from another modeling program or file type.
If so, that drawing is way clean compared to mine when they’re exported and opened in any other app! When I do that my models look as if they’ve been cocooned by an army of insane spiders, there are so many hidden geometry lines all over them!
I can reproduce the strange behavior using SketchUp 2023 on my Mac, but so far I have not been able to explain it. My leading theory is that there is something peculiar about the transformations of the tiles that is confusing SketchUp, but I haven’t tracked it down yet.
I’ve been poking around with the Transformation of one of the misbehaving component instances (oddly, all their names start with “Group” despite being components!). I can see that it is quite strange, as if It was scaled both by reducing the upper 3x3 part of the transformation, but also having a scale factor in the lower right corner. Usually SketchUp does not do both in the same transformation. I wonder if that is messing up SketchUp 2023 (But then why the change from 2022? Why would some dev have quietly altered the behavior of transformations between 2022 and 2023?)
Although the values in the part of the transformation that would correspond to a rotation about x have values whose ratio is consistent with a rotation by about 30.88819 degrees, they are not scaled the same as the upper left value, as if a non-uniform scaling has been applied to y and z vs x.
I was checking to see if this problem has been fixed yet, and it hasn’t. Here is a work around for now:
You may need to select a much large area than the component seems to occupy. Use the Select tool and do a right to left drag, so that if any of the component is inside the selection area, it will get selected.
Once it’s selected you would normally then right-click on it, to reset the scale or explode it. But, that will deselect the component. Instead, look at the bottom of the Edit menu, and there should be an entry that says Component (1 in model), or something like that. Look in that menu item and you will see both Reset Scale and Explode. As the goal was to have the object be at the size it is right now, doing an explode, and make a new component, may be the easiest fix.
so, whenever I open or close your file, I get lines and lines of errors being corrected - or not. No idea in what software the tiles have been made, but their conversion has been messy to say the least.
selects fine in 31.1 windows, not in mac version. although, selecting from the component panel works.
selecting with the lasso kinda works.
exporting one of the tiles component as a solo files gives this