It's most likely a Direct 3D compatability issue that modern Windows operating systems often have with SOM. I've figured out a few workarounds for this on my Window 8 machine. In general, the models that pop up in the preview panes are what's causing the crashing, so you need to avoid allowing them to appear.
* First off, I always do a quick playtest after opening the editor, this usually freezes the preview pane and allows me to work without crashes. If this doesn't work for you, the only other solution I've found is to compile the map after every time you scroll or select a map piece.
* Also, when working with objects you never want to click apply. Always click add and then back instead.
Otherwise, the best solution is to work on a PC that has Windows XP.
* First off, I always do a quick playtest after opening the editor, this usually freezes the preview pane and allows me to work without crashes. If this doesn't work for you, the only other solution I've found is to compile the map after every time you scroll or select a map piece.
* Also, when working with objects you never want to click apply. Always click add and then back instead.
Otherwise, the best solution is to work on a PC that has Windows XP.
~ ® Indie RPG developer.
Twitter: twitter.com/JC_Bailey1112
Twitter: twitter.com/JC_Bailey1112