Sometimes, when my PC restarts, I lost all my settings about Clear Type. It's on default.And if I go in Clear Type settings, nothing change when I tick and untick the Clear Type toggle.
Then, suddenly, after some PC restarts in different days, it works again properly.
I recenlty bought a 2560x1440 144Hz monitor, and I've noticed this problem since the new monitor installation.But I don't know if I noticed it now, just because now is more noticeable with higher resolution.