Originally Posted by
Geoffrey of Villehardouin
Sadly random crashes tend to happen. Sometimes they happen in a particular location (Tutmarakan sieges always crash at the end for me) but other times they happen randomly. They are sometimes caused by memory problems, that is when the engine is processing and saving battle data before returning to the stratmap. They can also happen during battle due to memory problems, because the SS units often have very detailed models, which require more memory from the computer.
There is no solution to these problems at present. It is not a bug, just the engine cannot always cope with the increased memory demands of SS as compared to vanilla, because M2TW uses only a single processor. So even if you have an 8 or 16 GB RAM, the game will use only perhaps 1 GB and so when it has to deal with a lot of data (large armies, multiple armies, huge unit scale, complex settlements, maxed out settings, etc) it can run out of memory and crash. If it was possible to reallocate memory across multiple processors, this might solve the problem but I do not think anyone knows how to achieve this.