After few minutest past running program, preview function complitely freezes. And this happens in any case, regardless of the complexity of the task.
I tried to rollback version to 22.0 (i use the latest 22.6), but there are the same problem. Windows 11, 16gb.
The usual steps: Check your hardware acceleration settings or turn this stuff off, check your system's graphics driver and update it, clean out caches, turn off multiframe rendering if necessary.
This happened to me for the first time last night. As Mylenium suggests its to do with your graphics card. As I started working through the steps, including shutting down Google Chrome (which was open in the background and also uses the GPU) AE suddenly started working again.
Also worth doing is CTRL+ALT+DEL and checking the task manager to see if anything AE is using is suspended. That usually indicates that the GPU has crashed.