Even though Starfield is the most error free game Bethesda has ever released, it doesn't mean the game is lacking bugs. As players report problems they've encountered, Bethesda has been working on fixing them, and now a new update has been released, numbered Update 1.7.33.
There is a patch list that you can view here, and among the fixes we find measures for stability and performance, but also regular bug fixes such as "an issue that could cause some characters to not be in their proper location" and "an issue that would cause displayed items to disappear when applied to in-ship mannequins".
As we previously reported, Bethesda is also working on a larger update that will include more gameplay improvements based on player feedback, but they have said that they want to focus on the technical part first and foremost.