I would have to try. This used to work "before"... "before" being a few months ago. The Server itself did not change (I mean, I did not update TS Server so far) Just the data changed so far (and the schema) I will try with a subset once I have a new post. Weirdly, all posts are upserted, it's really as if it run twice for some weird reason. The notion that i pass an

id

to the JSONL, but do NOT declare it in the schema, is correct, right? I could only imagine that this is somehow wrong and attempts to create two items (although I would still not understand why)