Some Tiff files processed by Odyssey (AtlasPDF.exe) fail due to the following reasons:

PackBits compression is an older Macintosh compression scheme that many modern Windows-based TIFF libraries handle poorly or inconsistently. AtlasPDF appears to lack robust PackBits decoding support.
4 samples per pixel with RGB suggests the TIFF has an alpha channel or extra component, which is unusual and can confuse converters expecting standard 3-channel RGB.
The large file size (23MB) for a relatively small image indicates the compression isn't very efficient or the file has additional data that's bloating it.
Compression: PackBits (Macintosh RLE) - This is an older, less common compression format