Spent 12 hours debugging a model that was fine the whole time

Last Thursday I was chasing a production AI pipeline issue where the results kept coming back garbled. Turned out the embedding model was totally fine, it was the cache layer serving up 3 week old vectors from a bad key. I sat there rebuilding the whole thing in a test env for most of the day before I checked the timestamps. Has anyone else burned a full day on something that was never broken to begin with?

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ramirez.sage8d ago

Three hours in, I was already rewriting the entire config file and questioning my life choices. When I finally noticed the vector timestamps were from two Tuesdays ago, I felt like I should get paid overtime for gaslighting myself. Cache keys are just the universe's way of testing our patience, I swear.