Two images don´t touch each other

[Kiko Llovet]

I made two squares with bçack border. I don´t know why appears a thin line between then. They are suposed to touch each other so there would be no thin line between then. Someone know why this happen? How to solve this?

[Callum]

Hi Kiko Llovet,

This is likely caused by the apps anti aliasing does the line between the objects go away if you zoom into it? Does the line show on export?

Thanks

C