The default settings for the auto-generator generate a AR response for a filtered message.
The response on the source connector is the one that is sent back upstream, though, regardless of what your destination responses say, so you probably don't need to fix the response that you are asking about.
If you use a destinationSet filter in the source transformer, you can completely remove destinations from processing, so only the one that you need to run will show, rather than having one of your destinations always show filtered.
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