What is this crack when I use path tool?

[洋栗54437508]

Hi. 

I recently updated to illustrator 2021.

I see some cracks when I use path tool which it did not occur previous version.

It occurs only when I use path tool.

How can I fix this problem.

Please help about it if someone know.

thanks

[jane-e]

Please show your Appearance panel with the shape selected.

~ Jane

[洋栗54437508]

thanks for your reply.

My Appearance panel is Japanese, so I put English translation.

The crack occurs when I lower opacity, but I did not see the crack in previous version.

Please refer an attached jpg.

thanks

 

[jane-e]

It doesn't make any sense. You have no stroke and 40% opacity for the fill. Is this every time you use the Pen tool? It's late in my time zone, and I am shutting down my computer, so I hope another volunteer answers shortly.

~ Jane

[洋栗54437508]

yes , It happens everytime when i use pen tool.

[洋栗54437508]

oh, I could fixed the problem.

The cracks diappeared when I deselect "line" section.

thanks

[Monika Gause]

This is probably caused by the GPU acceleration.