Engine v5.1.6

A patch to Connection.

• Large terrain worlds spend much less CPU maintaining stable physics colliders.
• Weapons and other items attached to animated characters no longer jitter or warp while the character moves.
• Objects you add or delete in GOD-MODE now stay added or deleted in multiplayer worlds.
• Custom events triggered by interactions now work reliably in multiplayer, including while players join or leave.
• A broken UI handler now leaves the last working UI in place and tells Savi which UI script needs repair.
• Sprites now appear reliably during startup even when camera setup changes while their shaders compile.
• Preloaded voice lines and sound effects now play immediately even when their optimized audio version is still being prepared in the background.