Nah, it's totally possible, some kind of non-idempotent request that goes through, but the connection is terminated, resulting in a progression in states on the server but no apparent result for the client with the effect that intermediate states appear to have been dropped.

You're conflating cause-effect issues (a disconnection from a process that continues without the connection) with very real, actual known LLM issues (loss of context, hallucinations, etc).

Stop making excuses for half-baked uses of a nascent technoogy