Classic Stern: one display misbehaves with any display fitted: loose HV pin at its plug

If the ball-in-play/match display (or any single display) shows the same fault with three different displays fitted, the problem is in what feeds that position, not the displays. Here the cause was a loose high-voltage pin in the connector at the display itself. Check and repin that display's connector, then its connector on the board that drives it.