The Cursor IDE freezes at the "planning next moves" stage

[NegativeAL (Alex Hopcroft)]

Ok so I got mine working again, it seems the freezing is a Windows issue…

Multiplane Overlay (MPO) is a Windows graphics feature that offloads certain rendering tasks directly to the GPU.

1. It improves efficiency, but recent Windows 11 24H2/25H2 updates (KB5068861) introduced regressions where MPO causes frozen or partially rendered windows in Electron apps (Cursor, Antigravity, VS Code, Discord) and even some native apps like Greenshot.

Registry tweak to disable MPO

Here’s the general process users have reported:

1. Open Registry Editor

   • Press Win + R, type regedit, and hit Enter.

2. Navigate to the graphics driver key

   Code

   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Dwm
   
   

3. Create a new DWORD value

   • Name: OverlayTestMode

   • Type: REG_DWORD

   • Value: 5 (this disables MPO)

4. Restart your PC

   • Changes only take effect after a reboot.

After this Cursor which would process one prompt and lock up 90% of the time is now working again, AntiGravity which would not even starts without locking up now starts every time.