LatentSync 1.5 → 1.6 — mouth pixel/blur artifact fixed
User caught second artifact на TASK-095 v4 fix: блочные lips, visible blur вокруг рта. Источник — LatentSync 1.5 known issue (GitHub bytedance/LatentSync#67). Fix: drop-in checkpoint upgrade к LatentSync 1.6, retrained на 512×512 для teeth/lips clarity. Episode #11 v5 deployed — mouth sharp, boundary line gone. Catalog updated.