Custom health monitor syntax triggers a configuration load failure

Hi all, We were running 11.6.0.6.0.442-HF6. When reloading config:

tmsh load sys config verify Validating system configuration... /defaults/asm_base.conf /defaults/config_base.conf /defaults/ipfix_ie_base.conf /defaults/ipfix_ie_f5base.conf /defaults/low_profile_base.conf /defaults/low_security_base.conf /defaults/policy_base.conf /defaults/wam_base.conf /defaults/analytics_base.conf /defaults/apm_saml_base.conf /defaults/app_template_base.conf /defaults/classification_base.conf /defaults/daemon.conf /defaults/profile_base.conf /defaults/sandbox_base.conf /defaults/security_base.conf /defaults/urldb_base.conf /usr/share/monitors/base_monitors.conf Validating configuration... /config/bigip_base.conf /config/bigip_user.conf /config/bigip.conf Syntax Error:(/config/bigip.conf at line: 7527) "/lb_check" unknown property

It gives error for custom monitor health check. Sending string is

ltm monitor http /Common/bluegreen_live { adaptive disabled defaults-from /Common/http destination *:81 interval 5 ip-dscp 0 recv LIVE recv-disable STAGING send "GET /lb_check HTTP/1.1\r\nHost: \r\nConnection: close\r\n\r\n" time-until-up 0 timeout 16

Seems this is related to https://support.f5.com/csp/article/K09293022

Does F5 has fix for that in 11.6 release?