Post any defects you find in the released or beta versions of the ImageMagick software here. Include the ImageMagick version, OS, and any command-line required to reproduce the problem. Got a patch for a bug? Post it here.
We wonder if the TIFF delegate library is throwing an error rather than a warning. Why not post a URL to one or two images that throw the warning/error so we can reproduce the problem and produce a proper fix.