Hey Chris. We had discussed the tileset performance bug with Solarus, and you asked me to submit a report to github. I saw in your report that you fixed this bug, now placing tilesets into a cache that allows much faster load time. Have you made a snapshot build for this yet? I'd like to be able to test maps faster for compatibility on my tilesets. :)
Here it is!
http://www.solarus-games.org/downloads/solarus/win32/solarus-1.6.0-snapshot-20170130-win32.zip
Thank you Chris! This is Perfect! :)