Overview
Videos uploaded on or after December 1, 2025 were not playing smoothly when viewed (especially on iOS).
On December 1, 2025, there was an issue with proper video resolution display and cache processing for multi-bitrate videos.
Date/time and Status
December 1–14, 2025
We have published a fixed version. Please update to version 4.2.9 or later.
Range
This affected users running mobile app versions 4.2.0–4.2.8 in the following:
・Viewing videos uploaded on or after December 1, 2025