Hello, I'm not sure if you're a Chinese user. I've encountered this issue with you before, and later I found out that it was caused by installing QQ Desktop (a program used to organize Windows desktops). This issue also involves 3dmax2026. This issue starts with corona12updata2. Opening this software 3dmax2026 on the computer will also cause an error. All versions of 3dMAX after installing corona12updata2 will run incorrectly, but uninstalling and installing corona12updata1 will work normally. The solution must be to reinstall the Windows system, and make sure not to install software such as QQ Desktop