can bike tires spin on the rim?
i thought when you inflate a bike tire the tube would hold the tire in place so it cant spin and rub a hole in the tube.
i have repaired flats where there was nohing in the tire to cause a puncture but i have seen scratches on the tube consistent with the tire rotating on the rim so i suspect maybe the tire spins a little on the rim.
Make sure the plastic rim liner is centered on the rim and the edges of the liner aren't bent up, so that the tube rubs on the sharp edge of the liner. I had that happen once and it put a cut in the tube not round hole puncture. I covered the liner with gorilla tape. No problem since.