Quoted from Graysonsdad:
Right orbit to lock 2nd trooper ball
Ball drops and i smack it right back up the inner left orbit to lock ball 3(immediately)......
It zips all the way around and sewers because I was expecting trooper activation. I've had this happen more than once. It's the only time I've seen the loop not register so I dont think it's a switch/opto issue.
It's a coding issue, not just related to the lock.
Once you hit a right loop/orbit, the game needs you to hit another switch (not counting spinner or switch around loop) before hitting the left loop/orbit. Otherwise it just assumes that the spinner is still spinning from the original left loop.
I've had this numerous times when I've hit the right loop, live caught, then hit the left loop - it simply doesn't recognise that you've hit it.
Pretty sure the same is true when going left loop, live catch, right loop - it doesn't register the second loop unless you've triggered a switch elsewhere on the playfield.
There are a few issues like this at various points of the game.
In mb a ball in the pops, will mean that you can't get reward for hitting the lower spinner (even if it's with a different ball) until a second or so after the last pop has been triggered.
If a good hit to the left spinner is the last shot to claim a JP in 2mtm, it often also awards the left spinner JP again, "2 for the price of 1".
Can't see any coding resolution for any of these with the current configuration of switches.