When red sand falls on torches it turns into regular sand.

Description should include steps to duplicate the problem.
Steps to duplicate
-Make a creative map.
-Place down red sand blocks to gather in survival.
-Build a wall that is 5 blocks high.
-Place a torch on the ground next to the wall.
-Switch to survival.
-Gather the red sand that was recently placed.
-Place the red sand on the side of the walls 5th block.
Conclusion
-The red sand will fall on the torch and become regular sand to be picked up by the player.