Samaloysius,
Thanks for responding.
The output no feature tiles option is not the issue. Its ok that there are more images than labels. The issue is that the labels aren't linked to the images in the map.txt file.
I actually tried this again with a different dataset and tool successfully created all the image chips and labels, but failed to create the map.txt, stats.txt, esri_accumulated_stats_json, and the esri_model_definition.emd files. Is there a way to generate these files outside of the arcgis pro tool set?
Cheers