Often cited as a "fixed" point for users transitioning to the newer engine. It resolved many of the initial bugs introduced in the version 5 rewrite while maintaining compatibility with older USB audio drivers. How to Safely Revert
Users report that the "fixed" old version—often a community-patched APK or a specific build pulled from backup—removes three fatal flaws of the new software: audio+evolution+mobile+studio+old+version+fixed