A display swap despawned a unit's spell effects with its old visual while their instances still named them, so a later teardown despawned a dead entity. 1.12.1's rebuild ends every effect on the unit first (`0x60abe0`, `0x60ac10`), then replays the auras' and the channel's kits.
**Changed**
- A rebuild runs only when `0x60ae10` says the display changed. It ends the effects started before it on the wire, and replays the auras' and the channel's kits on the new body.
- Kit sounds fade over 0.15 s as they stop (`0x6204b6`), and each loop is tracked per kit.
- benilla's rig heal keeps what the unit had.
**Tests:** a swap and a heal with effects up, the wire order within a frame, the gate, the replays, the fade. The swap tests fail on main.
Fixes#2843
Found in Adrinalin4ik/manila@cd8790bc🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Sam Sung
1a11ef8319