White line in divided element

[Darner]

When dividing a simple one color square in Affinity Designer, a white line shows where it's divided (breaked curve), for some reason, both in original afdesign file and exported jpg.
Ideas? Bug?

[Callum]

Hi Darner,

Is the line still there when you zoom in to view it? How did you go about dividing your shape? If possible could you provide a copy of the file so I can look into this further with you?

Thanks
C

[Darner]

Hi

Thanks for getting back to me.
After issue with original file, it was tested with 2 new files  (1000x1000px and 80x80 mm), with a simple square divided into two. Used both "break curve" and duplicated half the square. Still the same problem - Line in both afdesign and jpg file. Any ideas?

[Darner]

Hi Affinity people. What do you think about this thing? Did you manage to re-create and see the issue?

[NotMyFault]

This is by design and a side effect of anti-aliasing. There are multiple older threads discussing this topic.

Depending on your workflow and type of work, you have multiple options:

• use a backfill layer 
• deactivate anti-aliasing in blend range
• use workarounds to tweak alpha values. See 

Edited March 26, 2022 by NotMyFault