Quoted from spidey:

I had this problem and fixed it. Below the Death Star on the left side is a nylon lock nut. Loosen it, then push down on the wire form ramp as low as it will go, and then tighten the nut.
The balls go airborne off the wireform and hit the back ramp. When it's too high, they bounce and the game doesn't keep track of them properly. Go to test mode, game specific tests, hyperloop. Set it to on and feed balls up the left wire form to confirm the fix (roll them up by hand, not too fast but not too slow). It should show the correct number of balls going around on the display.
Before the fix the balls would collide and the count was wrong.

Quoted from spidey:

I had this problem and fixed it. Below the Death Star on the left side is a nylon lock nut. Loosen it, then push down on the wire form ramp as low as it will go, and then tighten the nut.
The balls go airborne off the wireform and hit the back ramp. When it's too high, they bounce and the game doesn't keep track of them properly. Go to test mode, game specific tests, hyperloop. Set it to on and feed balls up the left wire form to confirm the fix (roll them up by hand, not too fast but not too slow). It should show the correct number of balls going around on the display.
Before the fix the balls would collide and the count was wrong.

Quoted from DakotaMike:

Hey all, I'm a very recent Comic Pro owner and I need some help. I've been searching and searching and can't seem to find the answer.
The Deathstar/Hyperspace shot rejects a lot of the time when it should be holding the ball. The twin-posts pop up, but then kinda jiggle and go back down releasing the ball prematurely. This means that I can't start Deathstar missions, because the shot rejects / the ball releases before mode-start triggers.
What can I do? I think I remember reading something about adjusting the posts so that they are level with the pf when down? But I might be misremembering.

Quoted from spidey:

Hyperspace accelerator test
Anybody know how to fix this?
Hyperspace multiball is borked. Two balls go in the loop and spin around until it times out. The game thinks there's only one ball in the loop with two it doesn't launch a 3rd.

Quoted from spidey:

This is great! I have the same issue with the ball count being wrong in test mode which results in the game not kicking out ball 3.
I ran the Hyperspace loop test and watched the 4 opto boxes on the display and most of the time I see all 4 boxes blink but any of the 4 may not blink sometimes as the ball goes through. How do you tell which opto pair to replace? I suppose I could just replace all 4 pair.
Pimballlife has these,
https://www.pinballlife.com/search.html?Search=515-0215