http://gothub.r4focoma7gu2zdwwcjjad47ysxt634lg73sxmdbkdozanwqslho5ohyd.onion/OpenGMK/OpenGMK
This is a byproduct of it being actively developed, and is bound to happen. To fix it, open it in the build of OpenGMK it was created with, export a save#.gmtas from it,
and recreate the save#.bin in the new build with that as described in the recording section.