Getting glitched PSD preview

Hey, @yeejoy. Welcome to the Photoshop Community. I'll help you figure this out. Please share the system info from Photoshop Help > System info > Copy and paste into a text document > Upload and attach here.

Is the document/image stored on an external drive or in a folder associated with cloud backup services? Working through a network or external drive is unpredictable & is not recommended. Head here to learn more: https://adobe.ly/3A2G2zK

Please ensure there are no stale preferences in your Photoshop. You can go to the location of the preference folder below and rename it to back it up. (https://adobe.ly/3u7u84j)

This method is more effective compared to the in-app Reset Preferences at quit method. 

macOS: Hold down the Option key in the Finder when using the Go menu. The library will appear below the current user's home directory.

Library > Preferences > Adobe Photoshop [version] Settings

Rename the Adobe Photoshop folder by adding a .old at the end. (Adobe Photoshop 2026 > Rename > Adobe Photoshop 2026.old)

This will give Photoshop a fresh start as a new installation.

Let me know if it helps. Thanks!
Sameer K

(Type '@' and type my name to mention me when you reply)

My solution is to uninstall PS and install again, for the old psd that has glitched preview i’ll just make a copy and move to new psd file. 😉