Yeah, so I just started over, besides https://scratch.mit.edu/projects/549037969/ ... First remix chain that has an auto-thumbnail system on remix 0. You know what to do. Press "Remix" above, then change remix by 1, then add the next tile, delete the one 2 remixes ago, then press share. It's that easy. I made templates for tiles up to 128. Try using those, and basing other ones off of those.