Blue Grayscale Maps - AO importing with a Blue Color

Hello, does anyone knows why my Ambient Occlusion maps are importing with a blue color?

That’s is happening since some unity version I can’t remember…

What file format and image format is the texture on disk (tga, psd, png, exr, and is it 8 bit or 16 bit, greyscale or RGB)? What does it look like when opened in another program like Photoshop or Gimp?

I’ve tryed other formats, I’m actually using Grayscale .tiff (16 bits)
Looks ok in other software

The same is happening with textures that I download at textures.com website

I’ve seen similar problems with greyscale PNGs in the past, though lately it’s been better about handling more formats. What version of Unity?

I got this issue with 16bit grayscale images - the texture got fixed when set to 8 bit grayscale mode in image editor and re-imported in Unity. Testing on Unity 2018.3f11 …