Three finger drag, a productivity-boosting multi-touch trackpad gesture in macOS, isn't working properly for some owners of Apple's new MacBook Pro. Both 13 and 15-inch MacBook Pros have larger trackpads than their predecessors, but for many people the gesture doesn't work at all.
For others, three finger drag works only intermittently or performs erroneously when used in one of the sides of the new MacBook Pro's Force Touch trackpad.