Could be a corrupted types.db file?

Some things, you could check:

There, inspect file $DIR/types.db. diff with versions of that file which work/work-not. Watch for line-endings, etc. Details of parsing can be found in MIME::Types::_read_db().

In reply to Re: Unexpected behaviour of MIME::Types by Perlbotics
in thread Unexpected behaviour of MIME::Types by choroba

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