the insert moving around has nothing to do with anything thats fine leave it be the problem is your rim isent clamping down on the tires bead different tires have different style of beads and there is not 1 rim that fits all tire beads the superglue builds up the tire bead making it thicker it wont stick to aluminum for long any way but if you let it dry the super glue acts like teeth biting in to both the aluminum and the rubber holding it in place other than that i would say try a different tire or wheel cause your tire bead and your rims beadlock arent playing nice together