Ok I seem to have figured this out. The solution in my case was quite easy actually. I don’t even need to export / import any feed since we are talking about the same instance. All I needed to do was map new feeds from the new inputs and point it to the existing feed as against creating a new feed.

The error has nothing to do with the import but more to do with the Mqqt message to the emoncms. Marking this as solved.