I have a William's Grand Prix that is set on free play.
Game resets all 4 players to zero upon pushing start just one time; Ball is sent to shooter and plays.
When ball drains, it jumps to second player then upon drain it goes to third player.
After drain on third player, it goes back to first player and plays through all 5 balls.
Upon starting another game you can push start four times and it will play all four players to end of game.

There is one other issue that I'm not sure is related to the free play issue.

The right bonus collect saucer will not kick out ball if bonus stepper is reset down to 5,000 unless there has been some points scored before the ball lands in the saucer. This does not occur on the left bonus collect saucer...
Also, the two red arrows pointing to the left and right collect bonus saucers does not rotate from left to right after each ball as it should.
I suspect this may be why the right bonus saucer does not kick the ball out sometimes.
Once there has been any bonus added on right side bonus collect, the kickout works just fine.

I do not currently have the schematics for this game but I'm sure to be getting them if I cannot solve this issue. Game is sold and customer is waiting on game to be complete. I have some time to get issue corrected as I am still waiting to get some parts and build a back door.

Any advice on bonus saucer and free play issues would be welcome.

Thanks,
Ed T