Would it maybe be a good idea to increase the default sprite cache size? This is a setting that hardly anyone will touch but there can occur errors if it is set too low. The number should not matter now anymore on modern computers.
Is 100 MB a good value? I can also add higher values to setup, like up to 500 MB, or even 1 GB.
E: I guess any of that is technically suitable as default for modern computer, but how do we find a sane value? Normally we would need to run statistics on how much animations have to be loaded in the game for it to work without slowdowns.