Hi Alicia, This is what I meant by floating. It displays a mismatch error too. I broke the dataset down to smaller zones, ran AT on a certain zone without the GCP's. Then added the GCP's in with the correct reference system in place. Any idea what is causing the AT to appear this way? Also, usually when adding GCP's to the AT on a dataset, ContextCapture gives you an red, yellow or green indicator when choosing points. All points appear red at all times.
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