With a ball in the shooter lane a press of the right flipper will plunge the ball and fail the skill shot instead of cycling through the skill shot options.
The pictures will likely be out of order, but basically if there isn’t a ball in the shooter lane the right flipper acts properly. If there is one it lights up other switches. If the trough is full it also triggers every switch on the right column that lines up with a trough switch. I’ve replaced diodes on the shooter lane, right outlane, and 5th trough switch because those along with the flipper switch create the box in the matrix. I also pulled the board and reflowed the header pins for the matrix connectors. Also reseated the flipper connectors.