Solder was good switch was bad on one, the second key still not working. It's getting power but when the switch is pressed nothing happens. I tried 3 different switch and none of them worked. Thinking it might be the diode is bad.
If you are sure the soldering is fine, the next possibility is the diode, yes.
Multimeter is good for finding those problems.
The LEDs need to have the right polarity, so just spin them 180 and see if that fixes it.