a same command fails in the first time

[asmlgkj]

Dear pfrofessor, Thanks a lot fot providing such a powerful tool for cnv. I found a very strange error, a same command in cnvkit fails in the first time, but success in the second time. it is a rare mistate, maybe 1%%， does some random seed in code will lead to this?

cnvkit version 0.9.9
I found the error log is like this Cannot convert non-finite values (NA or inf) to integer
because of this error fails to generate sort_dedup.cns but when I rerun, it ends successfully