I uploaded this as .png file. I've only uploaded a .jpg once (the first tile I did) because there was an error message uploading as a .png. I have no idea what happened to this one.

Or do you mean after it displays in the quilt? I might get the hang of this some day...

Yeah, all the quilt display tiles are jpegs. It would take a lot longer for the quilt to load if they were all pngs. Nothing you can do about it, really.

Thanks for letting me know. I'll see if I can't avoid that somehow someway in the future :-)