Grayscale and Quantize on PSD generates corrupted file

Prerequisites

• I have written a descriptive issue title
• I have verified that I am using the latest version of Magick.NET
• I have searched open and closed issues to ensure it has not already been reported

Description

This code creates invalid file:

var fi2 = new FileInfo(@"....\190132LCZ.psd");
IMagickImage image2 = new MagickImage(fi2);

image2.Resize(new MagickGeometry(-1, 200));
// following 2 lines causes to created invalid image
image2.Grayscale(PixelIntensityMethod.Average);
image2.Quantize(new QuantizeSettings
{
	Colors = 256,
	ColorSpace = ImageMagick.ColorSpace.Gray
});

image2.Depth = 8;
image2.ColorSpace = ColorSpace.Gray;
image2.Format = MagickFormat.Psd;
image2.AutoOrient();

image2.Write(@".......\22222.psd");

Such exception is thrown, when I try to call GetColorProfile on that 22222.psd file:

ImageMagick.MagickCorruptImageErrorException: ‘insufficient image data in file `…\22222.psd’ @ error/psd.c/ReadPSDImage/2413’

When I use image magick cli it shows different error though: magick: unable to decompress image `…\22222_GrayScale.psd’ @ error/psd.c/ReadPSDChannel/1442.

Original file: https://drive.google.com/file/d/1LaKrxcZVmGAMhiMoAwo6kjzCpja9L31S/view

• Magick.NET version: 7.14.0.1

[dlemstra]

We don’t have access to Photoshop so we cannot test your issue @mdemettre and it looks like you have a different problem here? Can you please start a new discussion or issue that explains the problem in more detail.

[dlemstra]

I can reproduce your issue but and it looks to be related to the compression of the image. Will get back to you when I have more info.

EDIT: Found the issue, it was related to what I fixed earlier but I forgot something.