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I set to research worker robot speed 6 and launched my first rocket with satellite. All went well and white science flasks were routed to my research labs. Once all the flasks had been consumed the research was still not complete. It completed very quickly after the next launch and new white science flasks.
This means that either the first launch did not give 1000 white flasks, or that worker robot speed 6 needed more than 1000 science, I am unsure which.
The research was completed when the second batch of white science flasks reached the research labs.

or maybe some white flask got stuck on pesky splitters ? that happened to me

viewtopic.php?f=41&t=13674
This is ancient, pretty sure the conclusion still stands though. Without a proper report there is nothing to be done anyway.