Does anyone have any answers? Is solaris really not being supported anymore?
Solaris fully supported by Oracle still. However these forums have never been the official support channel. If you need timely answers then you need to log an SR with Oracle Support. Any support or answers we give here are best efforts and may come from community members rather than just Oracle support staff.
You don't mention which 11.4 SRU you are running, and we don't have enough information. The best way forward is for you to log an SR.
Darren J Moffat - Oracle Solaris Engineering - Senior Software Architect