Using resize fix, with low denoise levels, a transparent chequered BG is visible under transparency

[PippoApps]

Hello there,
when I use resize fix, if I keep denoise level under 0.5, the chequered background is slightly visible on the transparent resized image.
I.e.
1 - Create the image 1024x1024 - all fine, checkuered example image and white BG image are created
2 - Once resize fix is applied, if denoise is under 0.5, chequered BG is visible on the transparent resized image, albeit confused
If denoise is 0.7 works well.

1024x1024

1024x1024 transparent

2048x2048 - chequered BG is visible although foggy