I’m running Cubase Pro 12.0.20 on Windows 10. For the most part, everything is solid. However, if Cubase 12 has been running for several hours, enabling a disabled instrument track will freeze it every time. The same thing also happens if I import a track archive. The only way out is to end via Task Manager. After restarting, Cubase 12 offers to send a log file to Steinberg, and I always do so. This may be caused by another plug-in, but I don’t have any way to tell that.