The error tells you that modded worlds aren't supported; I imagine if you continue to load it, any modded tiles and items will be removed which is why it tells you to create a backup.hello everyone. why does this error occur? tmod and tedit latest version . when editing the world in tedit (unlocking chests), the world in the game does not load and you have to use a threaded copy.
tedit doesn't support tmod at all?
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