@Gazingpenguin: Like already explained
here, if a game is using the same engine version as Enslaved game, it will be false detected as Enslaved, which has customized assets and because of that umodel may crash. Override for Tribes Ascended is using default UE3 for everything except some tfc data, and to avoid possible issues with textures it's still recommended to use solution, provided in the linked topic (specific build, where Enslaved is excluded from auto-detection, so detection of default UE3 variant will work as expected).
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