I already regretted that I rushed and transferred my project to 5.6. It’s good that I didn’t have time to do too much. I went back to 5.5. I’ll wait for 5.6 patches, because the version itself is not bad and lumen have increased by 30% in performance for me, but for now this version is not stable
I have a similar issue in 5.5 right now, I work with Perforce as version control and disabling that and restarting the editor seems to correct it for few gathers then I need to repeat the process.
Sometimes this doesn’t work first time, but I’ve been able to gather texts and compile then.
My issue was also the infinite waiting on ‘Gather Text’ window to do something.
I found a temporary solution for the red cross failure in Gather Text, working as of 7/25/2025 UE5.6 – you’ll need a previous version of Unreal installed, in my case UE5.5 worked.
Navigate to C:/Program Files/Epic Games/UE_5.5/Engine/Content/Localization/
Copy both the ~/Engine/Engine.manifest and ~Editor/Editor.manifest files
Paste them into the same directory in UE5.6 instead, so C:/Program Files/Epic Games/UE_5.6/Engine/Content/Localization/
I was able to run the Gather Text commandlet using the Localization Dashboard after doing so