`Feb 08 13:27:28 edgar-dev kamailio[7213]: 11(7226) DEBUG: tls [tls_select.c:778]: pv_comp(): ind_local = 611(7226) DEBUG: tls [tls_select.c:717]: get_comp(): Element Unknown not found in certificate subject/issuer`
Seems like the code fails on UID and drops all parsing of the Subject line.