Sounds like even more issues with the connectors. I tore my hair out until I found the one iffy connector on my Dolly Parton. Replaced it and not an issue since. DP has in-line drops like Globetrotters and the spring on the arm is supposed to be in tension. It sounds like you put it back together correctly. If they're not falling, the springs on the drops may not be strong enough anymore and need replacement. If it's having reset issues, check the wiring.

Congratulations. Switches are pretty easy if you study the switch matrix diagram and find the common problem in a row/column. You probably just need a couple new capacitors and diodes. (And of course check the connectors to the MPU). I had a rough time with a switch before I realized that the new diode I was installing was dead on arrival.