Failed to load greyscale image

[Gotfind]

When attempting to load greyscale .png file it pops up Error that says "Failed to load image. Index was outside the bounds of the array." It's probably trying to find multiple channels in that file even though it has only one.

[jwax33]

Also seeing this with .png files

[Fidifis]

I've included a fix in version v1.4.0 https://github.com/Fidifis/TextureMerge/releases/tag/v1.4.0