Noticed the left side flippers getting weak from time to time. Problem seemed to only occur when the soccer ball was spinning - especially when it was just starting to spin. Installed new coils for both flippers.
Unplugged the soccer ball motor and played several games with zero issues.
Plugged the soccer ball motor back in and played several more games. The frequency of the issue was greatly reduced when I replaced the flipper coil, but it's still occasionally there.
Are the soccer ball motor and left flipper somehow tied into the same circuit? Is this just a warning sign that my flipper board is starting to go bad?