Shinseki Nokotowo: Tomari Dakara Animation Fixed Free

Use MKVToolNix to remux (repack) the video without re-encoding. This fixes minor container corruption.

Some Evangelion Platinum Edition DVDs have a around episode 18-20. Fix: shinseki nokotowo tomari dakara animation fixed

| Fix Component | Description | |---------------|-------------| | | Updated the Python script to always emit a duration value. If the source file lacks explicit timing, the script now defaults to 0.1 s per frame and logs a warning. | | Animator Guard | Added a robust validation step in SpriteAnimator.Update() : cpp<br>if (std::isnan(deltaTime) || deltaTime < 0.f) deltaTime = 0.f; <br> | | Metadata Validation | Introduced a pre‑load sanity check that throws a warning and substitutes a safe default when duration ≤ 0 . | | Unit Tests | Added AnimationMetadataTests covering: • Missing duration field • Zero/negative duration handling • NaN guard in update loop | | CI Integration | The new tests are executed on every PR; failures block merges. | | Release | The fix was merged into main on 2026‑04‑08, tagged v3.4.3‑fix‑anim and shipped to production via hot‑fix on 2026‑04‑09. | Use MKVToolNix to remux (repack) the video without