User is uploading 130,000 files using syncToSynapse. He ran it, and I was testing output. Somehow he's getting different annotation types for annotations from the same column.
Related issue: https://sagebionetworks.jira.com/browse/PLFM-5034
I've uploaded one of his manifests here (he actually has 8 of these):
Here are two files uploaded that have different annotation types for the same annotations: