Why Photoshop CS6 suddenly changing my background from white to black?

[suriaj]

Why Photoshop CS6 suddenly changing my background from white to black?

[Trevor.Dennis]

You'll need top give heaps more information if you expect an answer to that.  What is the context?  Tell us about what you were doing.

Did this happen after pasting an image into an existing document for instance?  If that's a yeas, and the image you pasted was a PNG, then that's what happens.  You see what I mean?  The more information you give, the better the chance of a meaningful answer.

[suriaj]

Hi. This is actually what happened. The canvas that I currently used actually pink color but after I paste PNG file that doesn't have any background, that board from pink suddenly changed to black. Then when I move the PNG all the layers became black included text. why?

                                                                 BEFORE

                                                                 AFTER

[Theresa J]

Can you show us the layers panel too?

[melissapiccone]

We need to see layers... how was the png created?

[Norman Sanders]

Also supply the source image that you paste into the target image including its Layers panel