I’ve never seen this in 7+ years of playing this game.
Playing Iron Man (still running 1.4 on competition settings because I like the 50 M jackpot).
I have Monger raised working toward multiball and War Machine multiball is lit. I start Monger mb and of course the WM multiball light disappears. (I know the stacking order has to be start War Machine and then Monger.)
At the end of Monger multiball I have one ball trapped on the right flipper, so before he lowers, I see the WM light is now on so I hit and start War Machine and somehow Monger multiball stays active with both multiballs running! I was shocked!
I tried several times to replicate it with the glass off to see if that was a feature I’ve been missing all these years, but couldn’t get it to happen.
Anyone seen that happen before? I’ve never seen that happen in thousands of plays. Wish I had a video of it.