Quick SolutionReset the tool

There could be multiple causes for your clone stamp tool malfunctioning in Photoshop. One possible reason could be an incorrect layer selection, while another could be a personalized setting of the Photoshop clone tool. To resolve this issue quickly, follow these steps to reset the tool:

Press the "S" key to activate the tool. Click on the Clone Stamp icon located in the upper toolbar.

On the right-hand side of the panel, you'll see a gear icon with the label "Reset Tool." Click on the gear icon to reset your Clone Stamp Tool to its default settings.