Well, I must not have cleaned the old glue off well enough or put enough weight on it, because one of the sides has popped back up. I don’t feel like pulling it apart just yet to know whether the glue came off from the glass or the hinge, but if it’s soon I’ll let you know.
I think a fair amount of it (including the first disconnect) is due to the glass shrinking/expanding since it’s out in my garage and experiences a wider range of temperature.
Either way, I’m in for a second round of glueing at some point. I didn’t pull all the old glue off, as it was pretty much as hard as what it was attached to. I also didn’t rough up the surface of anything at all, so you may want to try that and see how it comes out.