The latest patch version for Warcraft III was substantial enough that it may have rendered some custom maps unplayable. If you have created a custom map on an older version of Warcraft III, you may need to load this custom map file in your latest version of the World Editor program and re-save the file. Specifically, any altered ability data will need to be redone using the latest version of Warcraft III editor in order to work correctly.
Blizzard Technical Support
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