NCAA-M shot clock question

[Scrapper1]

Shot clock shows 18 seconds when A1 attempts to dunk the ball. He gets "stuffed" by the rim and the try never leaves his hands before the ball contacts the rim. A2 controls the rebound in Team A's frontcourt. Does the shot clock reset to 20 seconds?

I seem to remember that there was a time when the reset occurred when the try hit the rim after being released by the shooter. But I can't find that verbiage anymore.

In our game, we allowed the 20 second reset because the dunk attempt was a try and it contacted the ring. Did we make the correct decision?