Illustrator CC Poor Curves Quality

[drmono]

Since updating to CC I'm noticing that the curves often are a bit off, wonky, have errors etc. Even simple curve might render weird on screen. I'm attaching few screenshots. I've expanded one of the curves and blown it up. This is not how it's supposed to look. Does anyone encountered something like this?

System info:

iMac (Retina 4K, 21.5-inch, Late 2015)

MacOs 10.13.2 (17C88)

Illustrator CC 22.0.1

[Monika Gause]

Can you please point to what you mean?

I don't see anything abnormal there.

[drmono]

Hard to explain if you can't see it. The curves are sloppy. Here's another example, on the inside should be smoother.

[Monika Gause]

You will have to check all your anchors and handles and try to improve their position. But still this might happen in tight curves.

[tonyharmer]

Monika is right—as always.

Looking at some of the curves you've got there it looks like you have more than one point occupying the same space—probably due to an inadvertent double-hit; you also have points close together that do not need to be so (as in the outlined example) and there are also points that I'm willing to bet do not have the handles set at the tangencies of the curves (as in the orange example).

Maybe if you could let us have the file, we could confirm this for you?

[drmono]

I'm afraid this is not the case. There are no double anchor points and all of them are set to smooth. This is just poor rendering that was absent in previous versions.

[tonyharmer]

Ok, in that case—turn off the GPU acceleration (look for the rocket icon in the application bar) and let us know how that looks.

[Monika Gause]

Please show us a screenshot with points selected and all handles shown.

[drmono]

Another example. This butt cap... The projecting cap is even better. Am I missing something? Is this a bug or a feature?

[tonyharmer]

Looks to me like there's more than one anchor point at the end.

[drmono]

No, there isn't. To be fair, copied to new document the cap is fine. But still, this sort of wonky bugs shouldn't happen.

[Monika Gause]

Let someone have a look at that document.