Dassault Systèmes is notoriously aggressive about license enforcement. CATIA is a professional tool costing between $8,000 and $30,000+ per license. Using cracked software in a professional environment can result in fines of up to $150,000 per seat. For students, universities face network blocks.
Even with a legitimate download, V5-6R2022 is finicky. Here are the top 3 errors users face after downloading:
V5-6R2022 has "GA" (General Availability) and dozens of hotfixes (e.g., HF12). Cracked versions are usually the base GA release, which contains critical bugs that corrupt part files.