Ok, now I understand what’s wrong. Actually it wasn’t planned to use many pinch components in the same area. I couldn’t predict such use case. The only possible way to use many pinch components on the same screen is dividing it (screen) by player areas using Bounds (UTC components feature). For example one PinchComponent can use right part of screen and the second will use left part of screen.
But if you don’t want to define exact parts of screen per players you can try to use this hack (see the screenshot or copy-paste from UTC Pinch Components manual routing posted by anonymous | blueprintUE | PasteBin For Unreal Engine):
Unfortunately with this code other components will not work until you will update their events manuly like I did with pinch components on this screen. So please try this and let me know how it works.