Update
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Sunday 18 February 2018 at 14:05
Today I exchanged the opto 10 card, but sadly, it seems to have been ok, since the situation did not get any better with the other opto card.
Source: http://pinside.com/pinball/forum/topic/cc-ramp-lip-curling-solenoids-at-mine-and-saloon-not-firing#post-4236556