Heroic Games Launcher released version 2.22.3 today, a hotfix to address a critical issue that impacted its UMU functionality for many users. The previous release had introduced a regression where UMU was broken, particularly when the Steam Runtime was enabled for non-native games. This hotfix, contributed by CommandMC, specifically prevents UMU from being incorrectly nested in such scenarios, resolving the compatibility problem. The developers stated, "The last release broke UMU for a lot of people and this new Hotfix should fix it. Hopefully our last hotfix before the next Major release." This update aims to restore proper operation for a wide range of titles run through the launcher on Linux.