When locking balls on my shadow the lock /switches accepts balls and confirms ball1, 2 are locked and starts multiball mode after the 3th one gets in.
Wall is ok and optos as well (un/remounted and cleaned everything)

But in multimode it only releases one ball (on 1 of 3 lock sessions). 2 and 3 remains in position instead of rolling against the diverter.
The diverter goes on trying to shoot balls but balls don't roll over...
Using NEW low magnetized balls. Guess these are the right ones or should they be full magetized ?

I removed the switch board (switch 63/64/65) and bend them all 3 down a bit, contacts are ok (also in edge switch mode with finger or ball touch)

Lifted up the pinball itself a bit on the right to create a downstream...

Playfield is cleaned with novus 2 and Isopropyl alcohol.

Nothing helps only hitting the side of the pinball itself to get the ball moving...

Suggestions?

It was at 7.1 and brought it down to 6.5% No changes...

It's like the balls are stuck to each other...

ball locked 1 (resized).jpgball locked 2 (resized).jpg

The dirt has been removed but the lane where the ball passes was clean.

And yes your lockdown bar test make them move as a couple.
But I just bought new ones , sold as 'made for' the shadow and these are 'low magnetized'.
They sell standards but it's mentioned these don't work with magnets and they have full magnetized... Which one are the right ones to use ?

I have 5 cliffy's in use in my whitewater, will try if it helps..
I will only be able to get 2 in there (wood has one long cut and cliffys have a bended part at the end) meaning the middle switch where ball 2 is positioned will not have metal underneath from the protector...

My F14 has 4 balls, but Shadow has 5... will take 5th out of WH2O

Tried 2 cliffys and moved them against each other to avoid gap between them.
Not ok, the ball rolls in but stays at the upper side of the cliffy and doesn't activate switch. Clify metal should be larger to be effective.

Tried balls from F14-Tomcat which is a game without magnet.
Same result : ball 2 and 3 don't roll on over the first switch near diverter...

Yeah probably something stupid...first thought was alignment of the pinball itself but it's waterpass and at 6.5%, would have been to simple...

Yes switches are aligned, switches are as they look still the originals.

I bend the arm down a bit in line with what I found n the net :

The solution to this problem is to lift the playfield up and rest it against the backbox, then locate the switches under the playfield (with the game turned off). With long-nosed pliers adjust the micro-switch arms, so that only a tiny amount of pressure is require to activate the micro-switch. Then using switch edges test (T.1) place the balls in the lock and test all the switches and ensure that they no-longer present too much resistance to allow the ball to pass.