Weird stroke on shapes

[haleight25944203]

I'm new to illustrator, but I have limited experience with photoshop. I originally made a small crescent moon shape in illustrator, and then moved it into photoshop as smart objects. Whenever I edit the smart object in illustrator, the stroke changes and gets this strange distortion. But when I save the smart object, the appearance doesn't change in photoshop. This is what the shape looks like in photoshop.

This is what the shape looks like in illustrator.

When I first made the shape, the stroke was fine, but now all new shapes in illustrator have this distortion. So far though, it is only the shapes that are affected. As you can see in the illustrator image, the stroke created with the line tool looks normal. If I change the stroke definition on the shape, the stroke will change, but it will still have the distortion. I must have accidentally changed the settings somehow, because not all strokes are affected. Any help with this would be deeply appreciated.

[haleight25944203]

My OS is Windows 10, version 1703. Here's a screenshot of my current illustrator screen. Text is also affected by this issue, but lines are not.

For some reason, whenever I click anywhere on my canvas, the brush definition changes to this:

I'm pretty sure this is the problem, but I can't figure out how to fix it. If I change the brush definition and then click anywhere, it defults back to the above brush. I've also never used that brush definition, so I'm not sure why it's suddenly decided to defult to that.

[Monika Gause]

try View > Preview on CPU

[charlesy93151858]

Thank You!

This definitely helped me with a similar issue.

I know this was a problem when they first released CC 2015. Did they still not work out the kinks on this yet?

[Ton Frederiks · Accepted solution]

Maybe it is this driver issue:

Surface Pro GPU Issues – Adobe Illustrator Feedback

[Abambo]

Your GPU needs to support this. It's not always Adobe's guilt. Current graphics drivers, however, may be of great help...and a supported graphics card.

But for me, Illustrator works fine even without GPU support.

[Eternal Warrior]

+1