These issues are documented in the Up the Irons thread,
https://pinside.com/pinball/forum/topic/up-the-irons-the-iron-maiden-pinball-official-owners-club/page/92#post-5000189
the thread is extensive, but there is lots of info. I didn't even realize it was an issue until i got it dialed in correctly. It's a different game when it works properly.