Bug Hunting, 2 (Patreon)

The instances of maps not behaving correctly that were mentioned in the previous post are fixed now.

I've also discovered that my approach to computing the surface cache size is crashing in some computers due to malloc failures. Been trying several approaches to fix this, but still no luck.

And right now I'm comparing several different versions of the source to find out what caused some of the bugs that appeared in the recent versions. Lots of testing will be required.