Saving png results in loss of color data in fully transparent pixels

[Rafał32492281mt46]

- have a image with color data and mask

- export it to png (whatever method. saving/quick exporting, all of them have this same issue)

- open png and display RGB only data (no alpha), (also could be done through photoshop, import png, layers>layer mask> from transparency)

There's an ugly white frame around my image where fully transparent pixels were. I know these are fully transparent but people might use alpha channel to store some other data (like roughness) and this antifeature ruins color data. Also it's gonna ruin mipmaps

[S_Gans]

This would be helpful if posted in the Bug portion of the forum. Then people can "upvote" it, to get the attention of the developers: 
https://community.adobe.com/t5/photoshop-ecosystem/ct-p/ct-photoshop?page=1&sort=latest_replies&filt...

[Jeff Arola]

Bug or not, until it gets fixed you might consider using a third party plugin called SuperPNG that was developed because of bugs in the way Photoshop handles png files.

http://www.fnord.com/