[jarrett178]

Like WTF. It was working on Lollipop but now since Marshmallow none of my picture edits are saving. After I save an edited pic my phone will flash the circular loop like it's saving that I get taken back to the original picture without the edited picture saving.

I did another factory reset thinking something didn't install correctly, but it's still doing it.

[Bruce39]

Check the permissions for the photos app. I had a different problem; it was caused by a permission not granted after update.