Rotation by 90 degrees changes pixels

This picture is the area to notice when you follow my instructions.

This is a source file, you can convert to .aseprite if it matters.

-Note, I did test on both rotsprite and fastrotation.

reproduction steps:
frame 2
select tool(M)
mark all
rotate by 90 degrees counter clockwise

90 degrees rotation should be perfect for pixel art yet it distorts pixels. I’m on aseprite 1.2.4 but I noticed this before as well.

Welcome back @Gryphon! Could you please try the latest version of Aseprite? (v1.3-rc6). In Aseprite v1.3-rc2 we fixed the following item:

  • Fixed rotation inaccuracy with 90°, 180° or 270° degrees #3041