Thanks to Fordy234 for that explanation! I got mine to work!
Just to reiterate…
To enable being able to play your indie game with a DualShock Controller on Windows, (IDK about other PC platforms) you have to set the enulated controller type to XBOX within the DS4 program. Edit Profiles> the area that has Axis Config… tab over to Other… Then its should be in the first box- first option should be Emulated Controller. Change from DualShock4 to Xbox 360 and your DualShock controller should work like an Xbox controller. Epic isnt allowed to release the drivers within the engine for DualShock controller without the reciever being a PlayStation Partner which requires authorization from Sony and a fee.