This sounds very much like an issue I am having with V24.3
When I attempt to select a path using the curvature tool illustrator will hang. There are a few cycles of black/white screen and then control is retuerned. Occasionally, it works fine (although a little slow). I've shut down all other programs and unsed services with no effect. Illustrator is using the GPU, which dosn't seem stressed (according to techpowerup GPU monitor).
Whilst illustrator is hung, I see not responding in the title bar, resource monitor shows some CPU being used, but not excessivly (15-20%) and a high level of disk activity. Memory appears reasobly free as well.
This is on a Dell Precision 7510 with 32Gb RAM and 2Tb disk (50% used).
I've reset preferences as suggested. Any suggestions please, as this dosn't seem to be a common issue/