Create: Aeronautics Flashback
Since various bugs have been fixed in this project, I recommend using it instead: Flashback neoforge fixed

A mod that lets you properly record and replay Create: Aeronautics (Sable) physics-driven blocks with Flashback.
Create: Aeronautics runs its machines on a separate "sub-level" placed far away (about 20 million blocks from the player). Because of that, Flashback alone does not record them and they disappear during replay. This mod includes that data in the replay snapshot.
This mod does nothing on its own. You must also install Create: Flashback.
Recommend introducing Fix Flashback to fix the bug.
Installation
- Install NeoForge 1.21.1, Sinytra Connector, Flashback, Create: Flashback, and Create: Aeronautics.
- Install the Fabric 1.21.1 version of Flashback.
- Put
aeronautics_flashback-<version>.jarinto yourmodsfolder. - That's it — just record with Flashback as usual.
Requirements
- Minecraft
1.21.1 - NeoForge
21.1.x - Flashback
0.30+(via Sinytra Connector) - Create
6.0+ - Create: Flashback
1.0.0+(required) - Create: Aeronautics (Sable)
1.0+ - Sinytra Connector (needed to run Fabric mods like Flashback on NeoForge)
Notes
- This is a client-side mod. It works without being installed on the server. Installing it on the server is also fine.
- Not compatible with ReplayMod. Use Flashback instead.
- Not compatible with ServerCoreMod. It may cause rendering to break.
- Sub-level machines will not be recorded without Create: Flashback.
How it works
- Sable sub-level chunks and machines (on plot coordinates about 20 million blocks away) are delivered to the replaying client as-is through Flashback's custom channel.
- Even when you seek (jump to a different point) during playback, the entire sub-level is rebuilt from the snapshot, so it displays correctly no matter where you start.
License
MIT © tatuto-riku
Since this mod is currently under development, it may not work correctly.
How to Install Create: Aeronautics Flashback (Mod)
Create: Aeronautics Flashback by tatuto is verified for Neoforge across Minecraft versions 1.21.1 (latest release: 1.0.2, file size: 73 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.21.1) and platform (Neoforge).
- Make sure you have the compatible loader or environment installed for Neoforge.
- Move the downloaded Create: Aeronautics Flashback file into your Minecraft
.minecraft/modsfolder and launch the game.
All Versions
+ Add VersionFixes contraptions that are entity-ised (turned into a contraption) DURING a replay inside a Sable SubLevel not being rendered.
### Changes
- Record SubLevel contraption spawns mid-recording by wrapping
ClientboundAddEntityPacket(together with itsAdvancedAddEntityPayloadstructure) into a plot-coordinate custom payload, so it survives Flashback replay playback instead of being consumed by the fake replay server ~20M blocks away. - Removed verbose debug logging (now only enabled with
-Daeronautics_flashback.debug=true).
### Compatibility
- Minecraft 1.21.1 (NeoForge)
- Requires: Create, Sable (aeronautics/physics), Flashback
## Fixed
- Fixed an issue where block destruction particles were not playing on sublevels (Sable plot).
- Re-implemented Vanilla's destruction effects for sublevels (the previous
globalLevelEventwas targetting the mainClientLeveland was thus ineffective). - Added a mechanism to record and replay various level events on sublevels (explosions, potion splashes, fireworks, jukebox record playback, etc.).