Tip: Take advantage of easy to install Patches in your hack. The No More Sprite Tile Limits or SA-1 patches should be considered if you're encountering glitches where Mario and/or sprites are turning invisible.
Go check it out if you want. It's quite different to many SMW Hacks out there.
I make small logs of screenshots for hacks that need fixing or reworking. I often delete them after about 2-3 months after a log is submitted. If you need to see one of these older logs then again just PM me.