https://devforum.roblox.com/t/viewportframe-completely-broken-after-parenting-to-nil/2645313
ViewportFrame completely broken after parenting to nil - Engine Bugs - Developer Forum | Roblox
Oct 13, 2023 - ViewportFrame rendering completely breaks when parenting to nil and back, even if bound to the same CurrentCamera and even after its contents are updated....
https://devforum.roblox.com/t/attempting-to-use-humanoidapplydescription-on-rig-inside-a-viewportframe/1278715
Attempting to use Humanoid:ApplyDescription on rig inside a ViewportFrame - Scripting Support -...
Jun 8, 2021 - Hello! I have been working on creating a small system where a Character Rig inside a ViewportFrame applies a humanoid description client-sidedly. I have been...