mendelian2 plugin

[biouserPD]

Hi,
I am using mendelian2 bcftools plugin with this command :

bcftools +mendelian2 Input.vcf.gz --pfm 0705_WHOLE_BODY.CEL,F01_FOOT.CEL,M10_FOOT.CEL -m c

and I get this error: The sample is not present: M10_FOOT.CEL

but I'm sure the sample is present in the vcf file. if I move the order of the samples the last one in the list is always absent regardless of which one it is.
Any suggestions on how to fix this problem?

Thanks a lot