Why won't photoshop export a blank PNG anymore?!?

[GapingWound]

I recently ran into an issue where I was trying to export a transparent PNG as a size/placeholder, and instead of exporting the image, photoshop complained that it was empty and wouldn't let me do anything. I KNOW it is empty, and I WANT to export it empty, that's why I am in the "export image" panel. Why is this even happening? This USED to work just fine, and now photoshop is trying to second guess my actions. How do I turn this "feature" off?

[Kevin Stohlmeyer]

Why not just use Save As? That works.

[GapingWound]

Not actually. Haved you tried it? First, you cannot turn off the background layer without another layer present. You cannot save multi-layer files as anything other than psd, psb, pdf or tif. "So flatten it!" you say. Then it loses transparency and becomes a blank white image, which is not at all useful when I want a transparent image.

[Trevor.Dennis]

It worked for me. 

Add a new layer and delete the background layer.

Save As PNG with no content.

Open it again in P{hotoshop, and it is fully transparent.

[Bojan Živković]

For me it works when using File > Export > Quick Export as PNG but it won't work on right click > Quick Export as PNG.

Ensure that you have single empty layer in the Layers panel or lower opacity to 0% for that or any other layers you have, you can lower opacity for multiple layers then use File > Export > Quick Export as PNG (you may need to adjust quick export settings in preferences).