Hello.
I can’t download Fab plugin for Unreal Engine. I do have UE 5.8 which already has Fab plugin but I also recently downloaded Unreal Engine 5.7 which does not have it by default.
I went to my library inside EGS, found it, clicked on it, selected 5.7 and hit install and nothing happened.
i have the same problem
I installed Unreal Engine 5.8, and the Fab plugin was installed automatically. However, after restarting, it disappeared and I cannot reinstall it. I have tried clearing the cache, as well as completely uninstalling and reinstalling the engine. The exact same thing happened again: Fab disappeared after the reboot and won’t install.
I finally managed to get it working on my end after figuring out why the launcher is completely ghosting the installation. The Epic Games Launcher is hitting a silent write-permission or path-resolution error during the 5.8 update where it downloads the local installation manifest file—making the launcher blindly believe it’s already there—but it completely chokes right before unpacking the actual plugin files into the engine folder. Since I had a working copy of Fab on 5.7, I tried to manually copy the folder over and change the version tag in the .uplugin file, but the editor threw a “Missing Modules” error because the pre-compiled 5.7 binaries conflict with the new 5.8 API. To bypass this entirely, I downgraded Fab to a project-level plugin by pasting it into my project’s Plugins directory, deleted the old Binaries and Intermediate folders to clear the stale files, and then commented out two lines of code that changed in the 5.8 API. Specifically, around line 375 in FabBrowser.cpp, I added forward slashes to comment out WebBrowserWindow->SetParentDockTab(DockTab);, and did the same around line 65 in GenericAssetImporter.cpp for the bCombineStaticMeshes line. After that, I just generated project files, hit build in Visual Studio to let it compile native 5.8 binaries from scratch, and moved the freshly compiled Fab folder back up to my global engine directory at Engine\Plugins\Marketplace\. It works perfectly now across all projects, just make sure you never click “Install to Engine” in the launcher again or its broken installer will wipe your working files.