I was looking at the sdpops_mod.c code hoping that there was an easy way to remove a sess_version (Session Description Protocol Version (v): 0) structure, but there does not appear to be that functionality in that module.  It might be a bit of work to remove a duplicate sess_version line.

I am using Kamailio 5.1, does anyone know if this is an issue in later versions?

Thank you,

-Steve