It looks like your upper flippers are acting weird too. EOS might need some attention.

More info on the solenoid expander, which supplies +48VDC to the lower playfield flipper coils when in Elektra mode:

P1 switched lamp bus. Goes to anode of opto isolater triac driver MOC3011-U1
P2 Lamp SCR Connection. Goes to cathode of opto.
P3 GND

P9 +43v for relay and selected bank of solenoids
P4 Jumper brings +43v here when expander board used to do banks of solenoids. Probably NC on the harness.
P7 When relay on, this pin high impedance. When relay off, This pin is +43v (2nd bank of solenoid's hot side)
P5 When relay on, this pin goes to 43v. When relay off high impedance (1st bank of solenoid's hot side)

The relay is turned on when the lamp driver board's associated SCR turns on the expander board's lamp. When the lamp is on the opto isolated triac turns the relay on. The relay is toggling the banks of solenoids hot side while sharing a common solenoid driver transistor(which sinks low).

Can you hear the relay clicking? Can you check for the 43v? Bad opto isolated triac MOC3011? Jumper needs to be in too. It connects the 43v to the middle pin of the relay that switches to each bank side of solenoids.

OK, if the test button works the relay, but you don't hear the relay click in when in lamp test or gameplay, the signal for turning on the solenoid expander is coming from aux lamp driver board A9, connector J3 pin 7. First thing would be to check this wire pin and connector. The wire color is black - blue, so you might need to check continuity of that one from the aux lamp driver to the expander board. The signal is driven by Q20 transistor on the aux lamp driver board.

just in relation to your flippers on the main and upper playfields, and i'm not familiar with Elektra, but i don't see any way the mpu knows when the ball is on the upper playfield to have them act independently from the lower ones.

anyway, on the lower set of flippers there should be 2 switches on each assembly, first is the EOS (end of stroke) normally closed and the second is the top flipper switch normally open.

when the flipper is energized the flipper crank must open the EOS about 3mm and close the second switch which energizes the top flippers, this second switch must make 'good' contact and the contacts themselves be in 'good' condition, not worn or pitted.
the top flippers will also have their own EOS switch, as will the lower flipper assemblies.

The EOS will break the flow of current through both windings bringing in the 'hold' winding. If this switch doesn't open correctly you will experience flipper bounce and the coil will heat up.

The erratic behaviour of the top left flipper seems to me to be a poor mating of contacts on the main lower left assembly.

Elektra totally knows what playfield is active. It was the first three level playfield but the lower playfield has a captive ball (Haunted house was the first three playfield where the same ball traveled to all three)

At the end of a ball if you have enough Elektra units then the upper playfield is off and the lower is turned on.

Maybe a misunderstanding? and sorry for going off topic.

I am referring to the upper playfield as exactly that, the top one where the ball is plunged to, then the main playfield then the lower one.
I see a wire form in the middle ramp but nothing on the other two, so how does it know the ball is on the uppermost playfield, as there is no need for it to as the flippers both work for the top and main, it's only when the ball drops the the lowest playfield the mpu knows.
Is this correct?

I thought you were talking about the lowest playfield with Elektra.

all good Robotworkshop

TerminatorNo1 is there any chance you can post a pic of the top and underside of your Auxiliary Lamp Driver board?