Same here! 

When I export at 1x size or smaller, I see these kinds of errors on the exported image. However, if I export at a size larger than 1x, the error doesn't appear. The same issue occurs both from the browser and the app. Interestingly, when a coworker exports from the same file, they don't experience this problem. 

​@newjinjang 

GPU driver update solved my problem! Try it!

Hi everyone! Yes, I can confirm that it is working by updating the graphics driver.

​@newjinjang , gIad to see in the backend that you were able to fix the issue by following this solution! I've gone ahead and marked the topic as solved. Thank you!

I solved the problem by uploading GPU driver!Thank yo0000000u 😍 your my hero my soda pop

 감사합니다