Congratulations to all in this topic nailing this one down!
Your comment about stop rendering then starting again reminds me something I’ve posted in the forum and Zendesk some time ago. I’ve observed the same pattern with Trees where as you get closer, they disappear then reapear:
[08OCT2020] Trees draw distance is different per-species AND per-Trees LOD setting
[16OCT2020] Some trees are disappearing then reappearing
[25OCT2020] LOD Problems - Distances revisited
Ironically, in searching these links in my activity history I’ve stumbled on:
(1) LIve Q&A - October 28, 2020:
Answering to:
Good God. Seb Wloch just asked for examples of the loss of LOD bug they introduced cos they can’t find it.
Live Q & A via Twitch - #49 by CptLucky8
(2) Live Q&A - January 27, 2021:
Commenting:
Being one among others documenting the exact problems with LOD and Trees for months, I was indeed quite puzzled they were answering as if they were just discovering there could be an issue with LOD and Trees. It is especially even more troubling to me that IIRC, in a previous Q&A the same topic was brought to their attention with the same reaction.
Discussion: Live dev Q&A January - #57 by CptLucky8
@Jummivana
I believe the question of LOD bugs can’t just be ignored again in the next Q&A and it is important this is officially acknowledged and being worked on once for all. We’re counting on you! 
In Zendek: