The developers disabled the perfect run objective because it didn’t work. It’s abundantly clear the Arrange Objective meeting doesn’t work either, because no soul on God’s green Earth has given a way to make it complete more than once. Every single guide, proposed solution, or method consistently fails after a single fluke. It’s unusual how confident IOI was that they fixed it in that patch note when they seemingly didn’t do anything at all. There’s no explanation or fix.
At this point why keep the objective? It’s like if one of the windows in a house had no glass installed in it. If you can’t put the glass in, at least board up the hole.