https://bugs.winehq.org/show_bug.cgi?id=38027
--- Comment #3 from Dmitry Timoshkov dmitry@baikal.ru --- Created attachment 50759 --> https://bugs.winehq.org/attachment.cgi?id=50759 patch
This tiff file contains a 8 bpp grayscale image with additional 8 bpp aplha channel. wincodecs don't have a proper image format for this combo and under windows WIC Explorer shows that WIC internally converts this image to 32 bpp PBGRA format.
Attached patch adds support for this tiff file by ignoring alpha channel. Adding proper support for it shouldn't be too hard for an interested person.