Cracked software is modified software. These modifications often introduce bugs and instability not present in the genuine version. It may crash frequently, fail to save files correctly, or exhibit errors that corrupt your work. As Autodesk notes, using nonvalid software increases the "chance of the software not functioning correctly or failing completely, which may cause safety, quality or integrity issues for your designs, processes, products or structures". Relying on a cracked AutoCAD for professional or academic work is a gamble that can cost you far more in lost time and productivity.
