How do I downgrade my version of UE? From UE 5.5.4 to UE 5.5.3?

Development Getting Started & Setup
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1

Hi everyone!
I was working on Unreal Engine 5.5.3 and had to change my PC and reinstall the launcher. But now it automatically installs UE 5.5.4.

The problem is that in the 5.5.4 hotfix, they made changes to the IK/FK settings, which completely broke months of work.

FK/IK switch for arms and legs on the Epic-supported rig modules switches both arms/legs on a modular rig instead of just one.

I was animating all my characters directly inside Unreal using Modular Control Rig.
Is there a way to revert back to UE 5.5.3?

2

Hey @rwanlink!

You can’t downgrade hotfixes from the Epic Games Store. You’d need to install the source code of your desired engine version from GitHub.

Hope this helps! :innocent: