I have some problems with screenshots stored in the "Screenshots" album on Windows Phone 8 (Lumia 920). When I try to open them with Photolab (or maybe Pictures Lab), I get an error saying unknown format.

When I open them to crop or rotate, it just reverts back to the original on save. Have anyone else encountered this?

When I use a third party app to crop it works fine and the new image is saved.

  • I don't know what "Photolab" is, maybe "Pictures Lab" (test-tube above a camera icon). I tried to crop with built in functionality. Cropped, saved and the picture in Screenshots folder changed. Jun 1 '13 at 11:59

Screenshot files are saved as PNG files. I haven't tried your application, but I suspect that your third party application does not support the PNG format.

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