Hi , yes we have done the same, downgraded to 8.6 and it all works fine now.
Although the VMWARE support matrix says its not a supported combination it all seems to work.
The HP engineer said its an issue with the HP SRA, I still have my case open with HP, which they are aware of and are fixing.
But no ETA.
As soon as the new SRA is available i will drop a note on here .
Cheers
Mark