Flashback Studio

Bug fixes and performance improvements for the stable release, retaining Flashback's normal replay UI.

• Fixed Inputs actors drifting away from their recorded path, including around mounting and dismounting.
• Fixed missing or unstable actor vehicles, base-replay packets moving claimed vehicles, and multiple actors incorrectly sharing the same vehicle.
• Fixed the replay viewer being seated in an actor's vehicle (FBS-BR15).
• Fixed actors and vehicles disappearing when recorded packets only removed them from view range.
• Fixed a replay crash when a tick was prepared again, and saved Packets-fallback takes without unusable partial input streams.
• Fixed the performer's third-person camera being reset during acting.
• Fixed actor selection boxes appearing in exports or while the GUI was hidden.
• Fixed valid custom-payload thread handoffs being treated as replay errors.
• Reduced actor playback lookup work, moved project saves off the render thread, and reduced unnecessary skin-file checks and diagnostic logging.

Download the jar matching your Minecraft version: 1.21.11, 26.1.x, and 26.2.x.

Requires Fabric Loader, Fabric API, and Flashback. Minecraft 1.21.11 requires Java 21; Minecraft 26.x requires Java 25. Remove the standalone Flashback Fixes jar before installing Studio.