[Drag & Drop blocks] Multiple touches are being tracked while dragging a block #4754
Description
Describe the bug
Multiple touches are being tracked while dragging a block making it possible to have dragging direction and speed changes due to unintentional touches.
To Reproduce
Steps to reproduce the behavior:
- Start dragging a block;
- Using another finger/hand palm
- Notice that the chip moves to an intermediate point possibly changing dragging direction and speed.
Expected behavior
Only the first touch should be tracked while dragging a block.
Evidence
drag-and-drop-multitouch.mp4
Smartphone:
- Device: Android, iPhone, iPad.