Unfortunately, I'm 95% certain that both of them are receiving power--I can see the lock move a little when the unlock button is pressed (and they both make noise like they're trying to operate), but they just seem like they're not strong enough to actually push the lock up. I've lubricated them to see if that solved it, but unfortunately it made no difference. I may get the multimeter out and see if the voltage is low though, that's not a bad idea.
Can you elaborate a little more on the latch/actuator package piece? I thought that I'd just be able to replace the actuator, but do I need to get a separate latch as well? Here's the part I was looking at for the driver's door (part # BT4Z78264A27B, https://parts.ford.com/shop/en/us/body/locks-and-keys/door-latch-door-lock-actuator-motor-left-front-driver-p-bt4z78264a27b?pdp=y) , would I need to buy the latch too? Or is it included in the part I was looking at? I know I'll have to pull the door apart, but I want to make sure I have everything in order before doing so. Regardless, thank you for your help, really appreciate it.