Extra bit appears when joining objects

[H.Mac]

Hi,

Really hoping someone can help because this is driving me up the wall. 

Whenever i join these 2 objects an extra little bit appears that is not part of the shape.

It doesn't matter if I use shape builder or pathfinder, I get the same result. I have also gone through path>join to make sure they are complete shapes. I can't erase it either because its not part of the shape.

I have restarted Illustrator completely, updated it and tried copy and pasting the objects into a new document and it still happens. 

Please help me.

[tromboniator · Accepted solution]

Please try pressing cmd/ctrl+E or go to View menu > View using CPU and see if that makes the shapes appear correctly. There seems to be a game of Leapfrog that goes on as Adobe Illustrator, operating systems, and graphics cards try to improve yet manage to leave each other behind. Or something like that.

Peter

[H.Mac]

Thanks, that did fix it however then the whole document becomes slow. 

[Anshul_Saini · Accepted solution]

Hi @H.Mac,

We are sorry for the trouble. This is expected behaviour on the CPU view. The CPU view shows correct output, whereas the GPU view is used for performance and real-time drawing, which can sometimes show incorrect output on a higher zoom level. You can quickly switch between GPU & CPU view using the ctrl/cmd + e shortcut. You will not see this abnormality in the exported file or while printing if it is showing up correctly in the CPU view.

I hope that clarifies!

Regards,

Anshul Saini