My Touch and Drag controls are not working properly. Any ideas?

I’m making a simple endless runner, and I’ve been having some issues with my touch and drag controls.

They work pretty well, except when you touch the screen just below where the player pawn is they don’t work at all. No touch input seems to be detected when this happens, as the “Touched Screen” string isn’t printed.

Sometimes it works perfectly when the game is initially launched, but if you die and restart the controls are broken again.

I attached a GIF showing the problem, as well as my Blueprints. Anyone have any ideas on what might be causing this?

GIF: Endless Runner Controls Demo GIF | Gfycat

Blueprints: