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in reply to Re: Fatal code point 0xFFFFFFFFFFFFFFFF
in thread Fatal code point 0xFFFFFFFFFFFFFFFF

This works ok on many files. I can't really control the input. Is there a way to deal with this issue besides disabling all warnings?
It appears that you are reading a corrupt/illegal sequence of octets from a file which, when fed through Encode::decode(), gets interpreted as a code point greater than the maximum allowed. See "Handling Malformed Data" in the docs for Encode.

Dave.