Broken bus wire under the PF? Did you check that the non working coils have 43vdc on each lug?.

Besides that momentary solenoid data connector with a broken contact seems likely.

Check connector MPU J4 pins 1-4 and driver board J4 pins 3-6.
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Comparing the 74154 datasheet truth table to the coils not working could probably identify which of the ABCD pins has a problem to result in those coils not working. Another check would be to put the game in solenoid test and watch the ABCD momentary data right at the 74154 chip on the driver board. If one bit is always high that is the problem signal.