Opennebula does not include debug logs into syslog facilities

Dear Opennebula developers

We are using syslog facility instead log files to process all our logs in logstash, in our case our 4.10.2 oned.conf includes:

LOG = [
system = “syslog”,
debug_level = 3

but we found that only [I] and [E] logs are included into syslog, our opennebula [D] debug logs are missing. Do you know why? should we add something else in our configuration?

Thanks in advance