Workflow Results Not Being Selected in Results View

Hello,

I've recently made some upgrades to the functionality of an Address Search Workflow in our sites and I'm now encountering some weird behaviour when it produces results.

Originally, the workflow simply searched for an address record and selected results, I've added functionality to zoom to the results at the end of the workflow. Upon testing these additions everything worked fine but users are noticing that when the workflow gets to the Select Features task the workflow throws an error (below) despite selecting the record (visible in the Selected View in the image below). Closing the error and opening the Results View I can see that the Workflow did indeed select the feature correctly and has highlighted it on the map but the thrown error has halted the workflow at this point.

If I attempt to run the workflow again while the Results view is active the workflow performs as expected and in it's entirety, performing the set map extent task at the end (second screenshot below).

Can anyone see where I seem to have gone wrong here?

*You can try the workflow here (http://maps.waterloo.ca/runWorkflowByID=AddressSearch) http://maps.waterloo.ca/?runWorkflow=AddressSearch

-Warren

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