FOSS gamedev and creative worlds

ok when i start up minetest (0.4.5) i notice a message appears saying 'PNG warning: Interlace handling should be turned on when using png_read_image' and around 8 times out of ten, when i close a world, the game crashes. i tried deleting the debug file and starting a new world (as i got told 2) but the error still appears. any solution?

also i think this happened after downloading the 0.4.6 build, but dunno if that would b responsible...

That error is fine, perfectly normal. The world closing crashes have been fixed in latest git.

Just redownload the latest Minetest version