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Flashback Neoforge Fixed

Compatibility fixes for running Flashback on NeoForge 1.21.1 through Sinytra Connector.
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flashback_neoforge_fixed-1.0.5.jar

File nameflashback_neoforge_fixed-1.0.5.jar
Uploader
tatutotatuto
Uploaded
Sep 5, 2026
Downloads
87
Size
160.9 KB
Mod Loaders
NeoForge
File ID
8812003
Type
R
Release
Supported game versions
  • 1.21.1
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Curse Maven Snippet

NeoForge

implementation "curse.maven:flashback-neoforge-fixed-1671440:8812003"

Learn more about Curse Maven

What's new

Fixes replay startup on older NeoForge 21.1 builds, including 21.1.172, where the later AttachmentSync login call does not exist. The attachment hook is now conditional, and replay registry restoration supports both RegistryManager API signatures used across the NeoForge 21.1 lifecycle. Clean builds were verified against NeoForge 21.1.172 and 21.1.248 with the Flashback 0.39.7 compile target.

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