Over the course of producing maps I've had ones (such as this one) that seemed to crash some of the time, but not always. I traced the cause to the use of a very large about of jungle terrain in a map (which is why larger sizes crash more often). I've also noticed that several other people (here and here) in the past who have complained about crashes had created jungle-based maps. I'm not sure about the precise mechanics but somehow the jungle terrain is causing or facilitating crashes. The jungle crashes exist in all version of the game.
Is this a known issue?

A slightly related point: This map also has random crashes - however in this case it seems to be due to the connection generation section. My best guess is that it is due to the creation of a large number of connections (crashes happen more frequently with more players and larger sizes).
Interestingly, these connection crashes do not occur in the HD Edition (they do in the UP though).

This post is mainly meant as an FYI. Also, I was interested if these are known issues and if anyone else has run into them.