Do a lamp test to verify:

Is that green with a black tracer? color#48 on the schematic ... a5j1-5 "upper side target arrow"

Sorry my machine is in another location at the moment. dunno if I have any pics but will take a look

I don't have any good pics of the underside of my playfield.

the arrow I was thinking of is towards the drop targets but still a l~o~n~g way from that tube shot lamp

Does a lamp test indicate any feature lamps out ?

An image here but a bit obscured by the tube shot socket.

https://pinside.com/pinball/forum/topic/xenon-clubmembers-onlytry-xeeeenon/page/13#post-5609765

See if it has continuity with a blue wire on your rectifier board connector J1

The drawings kinda shows they used a blue wire in a lot of places ... but I suspect it's the feature lamp bus

Xenon blue wire (resized).jpg