Hi there, Could you please try switching or resetting the workspace and see if it helps? https://helpx.adobe.com/in/photoshop/using/workspace-basics.html#save_and_switch_workspaces
If that does not help, then try resetting the preferences of Photoshop.
https://helpx.adobe.com/photoshop/using/preferences.html
Note: Make sure that you back up all your custom presets, brushes & actions before restoring Photoshop's preferences. Migrate presets, actions, and settings
Regards, Sahil
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