The addition of fixed to the filename suggests this is a secondary release intended to correct errors in a previous version. Common corrections include:
If you own the Rush Blu-ray, follow these professional steps to create a working MKV — no "fixed" torrents needed.
If the file is beyond repair (constant macroblocking, audio crackle), the only fix is re-encoding from a better source – but if you’re stuck with this file:
Use HandBrake:
Output filename: Rush.2013.480p.BluRay.x264.AAC.Clean.mkv
Your file likely has irreversible damage (e.g., missing key frames). Only a fresh rip from a legal Blu-ray will work.