Interesting one tonight. Got crypt going with insect locked in and secret passage ready and lit. Hit the passage, the little things music started, then waited the usual 3 or 4 seconds before the super fast computer starts the mode, but this time nothing. No green targets lit, so had the music playing but no mode start. Played another 30 seconds of multiball until one ball drains, then secret passage lights again. Hit it, then started the insect mode again, this time with green targets to hit.
Multiball generally seems to confuse the programing(er) especially when ball savers are concerned. Either draining when scream again flashing, resulting in no ball save, or outlane flashing purple when in multiball (save lit) and no ball save when one ball drains, and outlane save still flashing purple.

Don’t believe that’s possible as crypt is started simply by hitting the drop target. Frank has a diverter which is tuned to the other modes.