'Unexpected value of transcript_strand in MAF file'

[yunhuip]

mutagene -v rank -i test.maf -g hg38 -c gcb_lymphomas -p test.profile
WARNING Parsing MAF failed. Check that the input file is in MAF format or specify a different format using option -f
ValueError('Unexpected value of transcript_strand in MAF file')

mutagene report error when transcript_strand is not available in some lines of input MAF files.