Did you see what order they were cut in? It’s as if it cut all the ones pointing one direction and then lost quite a bit of X travel when it started doing the ones pointing the other direction.
I just tried it a different way, and it was going to do it again. I stopped it by lifting the lid just a bit before it ruined another batch. I’m not sure what’s going on.
Originally, I only had 2 brackets in the file, and I copied and pasted it in the GF UI.
The second time, I copied and pasted them in InkScape, and uploaded the whole file to the GF UI.
It did offset everything. But when it got to the right side of the bed, it did not cut further than the bed. So that must have screwed up where the GF thought it was. So when it went back to the left, the cuts were off.
I got hit with a recent Copy/Paste bug in the software…similar but not exactly the same, and they have since fixed it. (It might have been something in the browser, since they asked for that info, and I was using Chrome as well.) It looks like you copied and pasted those in the interface, correct?
If you try copying and pasting your duplicates in Inkscape before saving the SVG file, it might make a difference. (That’s what I was doing to get around it while they were looking into it.)