I apparently either have a script the removes the sound, or it was never there and i didn't notice.
Either way, I couldn't find a snippet so I made it myself.
All this does is play what ever you define as Actor Damage in the database, when you take damage from floor tiles (or poison if that works for you, it didn't for me and I had to create a common event to do poison I don't know why).
Paste below all other scripts to make sure it doesn't still mess up.
This is an overwrite method, it's default except sound.play.