User level: Level 1 (4 points)Hi, have a MacBook Air m4 13 inch - recently downloaded macOS 27 on 15th September. Everything is good except the 4 finger swipe gesture for opening the apps list. The animation is really choppy and sometimes doesn't open also. Is this a known bug? Plz help!!
Posted on Sep 20, 2026 3:06 AM
User level: Level 9 (74,110 points)Sep 20, 2026 2:15 PM in response to RexBir05
Hi there.
Please try this
Leave it Plugged in Overnight: Connect your MacBook Air to its power adapter and leave it idle overnight. This allows the intensive indexing routines to run uninterrupted at maximum performance.
Toggle the Gesture Off and On: Go to System Settings > Trackpad > More Gestures. Turn off the gesture causing trouble (Launchpad or Mission Control), restart your Mac, and then turn it back on to clear out cached preference glitches.
Monitor Activity: Open Activity Monitor (via Spotlight) and check the CPU tab. If processes like mdworker, corespotlightd, or Siri-related daemons are using high CPU percentages, it confirms your Mac is still actively indexing
Originally posted at discussions.apple.com/thread/256361075