Sketchbook Mobile Drawings Corrupted, TIFF Files Gone

[Anonymous]

I recently opened the Autodesk Sketchbook android app on my Galaxy Tab S4, model SM-T830, only to find that 75% of my files have become corrupt and in-editable ("Oops, Failed to open image"). I tried manually exporting the .tiff files to the desktop version, but only my non-corrupt drawings even had tiff files present in my system storage ('SketchBook3' folder), the rest are simply gone. Is there any way I could salvage these drawings? If not, is this preventable outside of the 'save as' trick? It literally happened overnight, and to drawings ranging from ones I was working on yesterday to ones I worked on months ago. I am tempted to find another app to use, as this feels very random and I don't know if I want to trust other files to not become corrupted.

Thanks.

[david.lau]

You may be able to get some of the preview images from the 'normal' gallery.  It maybe in:

/Autodesk/SketchBook3/SketchBookPreview

NOTE:  When you sketch something and save it, it will be in:

.tiff (layers):  /Autodesk/SketchBook3 folder - > Only viewable in SketchBook > Gallery

.png (no layers): /Autodesk/SketchBook3/SketchBookPreview - > Only viewable via "Gallery".  This is the same gallery where your photos taken from your camera.

Best workflow is to save 'versions' of the file.  i.e see #7 here:

https://forums.autodesk.com/t5/sketchbook-forum/android-sketchbook-tips-and-tricks/td-p/9385407