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