Im kinda giving up now, and am eternally grateful for some help. I bought a special force, rebuilt both flippers. I replaced all flipper parts, adjusted eos, checked that there is smooth nice manual movement of the plunger link into the coil etc. I feel i have done all checks on sticky flippers.
But as soon as i hold the right flipper button more than a second it sticks, in cradled position. If i push gently it goes down, i also tested turning of the machine in that position and ut does not drop so its mechanical, not electrical.
See attached photos and videos of topside and manual movement of the flipper.
Any help greatly appreciated!
This is how it looks topside:
And this is me releasing the flipper mech manually from stuck position ,pushing the flipper link and its not sticking:
This photo is how it looks under pf when its stuck: