The manual also states
Quote:


If the source or target specifies a directory, please make sure to add a trailing backslash




which you forgot. You're now tryig to write a file under the same location as an already existing folder. As windows does not allow this, an error message is generated and the action is not beign performed. This is the correct and desired behavior. Thus, it is a coding error in your code, not a KiXtart or windows bug.
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There are two types of vessels, submarines and targets.