Im actually starting to get a problem like this myself, every time i save any map now for some reason my editor gets the trigedit message saying "something bad happened" and then crashes.
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Send me your backupdb file or upload it somewhere. It normally has to do with the file being damaged, but I have not been able to get ahold of a damaged file.
SCMDraft 0.7.3 crashed on me with TrigEdit saying there was a problem (I only use the classic trigger editor) and giving me a dump file. Unfortunately it also corrupted my map and my backup archive is empty even though auto-saving and backups are turned on.
This is what's in the SCMDraft console if I try to run it and open my map:
Plugin(E:\BROOD2\Starcraft\plugins\Classic Trigedit.sdp) is incompatible with Scmdraft version
Error loading plugin (E:\BROOD2\Starcraft\plugins\Classic Trigedit.sdp)
(ENGINE) Loaded data.
Opening protected maps disabled!(E:\BROOD2\Starcraft\maps\!!!!!!dddd.scx). Compile with -IGNORE_PROTECTION option set
(ENGINE) Closed Map.
Now the game won't open my map saying it's invalid/corrupted and SCMDraft says it's protected.
Here's the dump file:
http://tf.interstellarburst.com/Trigedit.dmp[right][snapback]622782[/snapback][/right]
Whats the size of your backup file? Also, what were you doing right before it crashed?