Descriptive Problem Summary:
When I compile my game, update the map and run it, upon returning to the map editor after testing my changes there's an overlay of blank "obj/" over my map, and certain tiles have changed type (/turf/platform/ changes to /turf/wall/rampR/ for example)
If I then save the map without deleting/changing everything back, occasionally it'll break the map file (world.dmm:13:error: expected )
Failed to load map file C:\Users\Guru\Dropbox\New folder\BYONDGame\world.dmm.)

This happens every time I work on this project, on various computers (running windows 7 & windows 8.)

Other information:
world uses icon_size=8, and map_format is topdown. It also uses the sidescroller library by forum_account.

Numbered Steps to Reproduce Problem:
1. Create map
2. Edit map
3. Test map by running the game
4. Close the game
5. Go into the map and change/add something
6. Map will be swarmed with obj/ and some turfs are changed into other kinds of turfs.

Expected Results:
Map as normal, editable in full after running the game.

Actual Results:
Map transforms into monstermap, destroyer of worlds.

Does the problem occur:
Every time? Or how often?
99% of the time
In other games?
I've created 2 projects and used the same code and icons, new dmm etc though. Happens each time.
In other user accounts?
N/A
On other computers?
Yes

When does the problem NOT occur?
When a new map is made, saved, and not edited after initial creation.


Did the problem NOT occur in any earlier versions? If so, what was the last version that worked?
Has the same problem on version 493.
Workarounds:
Do all your mapping in one sitting.