Rear view mirror / windshield adhesive
Third time was a fail also.
I used the old school tubes you break, let it sit for a few days, the mirror fell off before I made it around the block.
I do have one more kit by 3M I will give it a try.
Never have I had such a issue with a mirror.
If I was actually working in the plant instead of from home, I would get some Hysol aircraft adhesive and stick the the button on.