Contig lost in easy-taxonomy analysis

[aliprior]

Hello, I am using mmseqs easy-taxonomy to taxonomically assign my metagenomic contigs. As an input I provided 223260 contigs, but then I recovered just 223259 in the *_lca.tsv doc. The log files seem right, and also the overall output. I would like to know if there is some kind of internal filtering in mmseqs that may end up in the lost of some contigs, and how this pre-filtering works (parameters, etc.). Thanks in advance!