Changes remain visible

[joshp45165038]

Using photoshop and if i edit a layer, the old version remains visible on the document but doesn't exist as a layer.  

For example I moved the 'Dresses & Sandals' box down and the original was still visible on the document.

(see images)

Very frustrating. Can anyone help ?

[Guest]

Assuming you're on version 21.2 and to save me retyping

https://community.adobe.com/t5/photoshop/photoshop-creates-duplicate-photo-when-dragged/td-p/1125546...

[joshp45165038]

Thanks Ged