We’ve discovered a problem with yesterday’s 2.2.0 update, relating to texture groups and audio groups being reset to default when you open your project in 2.2.0. If you use source control, you can revert your project to an earlier version. If not, you will need to reset them manually. In both cases, we recommend that you also revert to 2.1.5, available for download from the top of the release notes page: http://gms.yoyogames.com/ReleaseNotes.html as your changes will be cleared when you re-open you project in 2.2.0. Currently we have suspended updates to 2.2.0 while we fix the problem. We have a fix, which we are urgently implementing. We hope to have it ready later today. We’re truly very sorry for the inconvenience caused by this.