L&L’s Windows developers rely on the QT framework for a lot of the heavy lifting in Scrivener, so my guess is that the framework doesn’t support bulleted lists very well and the devs haven’t figured out a way around it.
While the implementation of bulleted lists in Windows Scrivener v1 wasn’t quite as broken as it is in v3, it wasn’t very good, and I complained about it back in 2016. So bulleted lists have been a long-term weak point of Windows Scrivener, which leads to my outlook that, even if some of the current problems are “fixed”, bulleted lists will never be a polished, “it just works” type of feature. I reconciled myself to this back in v1 days. For me, Scrivener’s benefits far outweigh this flaw.
But I am fortunate, as a fiction writer, that my requirement for lists are so minimal that I can get away with only using very simple one-level bulleted lists or avoiding them entirely. I sympathize with those who have more demanding requirements and are forced to use workarounds, like syncing with Word or some other RTF processor–but I appreciate the users above who shared that workaround, as it never would have occurred to me! 
Best,
Jim