After updating from 2.0.32 to 2.0.39, I can now run through a "crack" where a pipe and a pipe-to-underground is connected. I have attached a save game with a completely new game, where I have inserted 100 pipes and 100 pipe-to-ground to inventory and then just built two structures. The engineer is ...

Right, I guess this is a no-bug then.

I haven't seen any specific video tutorials with regards to splitters (balancers, though...), I based my bug report on my +2000 hrs experience. I guess it is never too late to learn about the quirks.

Thank you both.

In the Blueprint Sandbox I'm designing a chemical science pack factory. While checking the flow of items I noticed a splitter not splitting correcly: Two consecutive items are put on the same output belt. The splitter does not have any priorities set. See the attached video from about 5 seconds to 8 ...