View outline has become painfully slow to the point where it's useless.
Toggling outline view breaks animated zooming. A restart is required to resolve this.
Upon opening Swatch options always shows RGB values even though the selected color mode is HSB. This requires you to switch to another color mode and then back to HSB before editing.
Swatch options preview toggle is not remembered. Having to toggle this option every time I adjust a color is tedius.
Creating a new global swatch of a color that is already a global swatch creates a swatch that is an instance of the original color swatch, they are effectivly the same swatch represented twice in your swatch library... but I created a new color swatch!
These issues make working in Illustrator painful. I tried Affinity Designer but it has it's own issues.