Weird Problem With 1994 Mustang Gt Window

My 1994 mustang gt has a weird issue with the windows. The passenger window from the driver side does not work. The drivers side window switch works fine, but the passenger window from the driver side does not work. The passenger window works fine from the passenger side. However, when the passenger puts their window down, I can press the passenger window switch on the drivers side and stop the window from moving. Example: Let's say the passenger is putting their window up by pressing up on their switch, I can from the drivers side, press down on the drivers side passenger switch and stop the window from moving. How come the passenger window switch doesn't work from the drivers side, but when someone uses the passenger side switch I can press down on the drivers side passenger window and stop the window? It's like the switch only gets juice when the passenger is moving their window and I press on the opposite direction from the drivers side:?: I know this is hard to follow so feel free to ask questions on how you would like me to explain the weird problem. For those that understand what I'm saying, what's going on and how do I fix it?