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[GunChleoc <fios@xxxxxxxxxxxxxxxxxxx>]

I think I found the problem:

(bo.outputs.size() == 1) means that there is 1 entry at index 0.

(tribe_->get_ware_descr(bo.outputs.at(1)) would only be available if bo.outputs.size() > 1

Unlike Lua, C++ starts counting from 0. Actually, Lua is quite exceptional here, since starting from 0 is the usual way of doing arrays.
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