Welcome to the Community,
I really hope that HPE is able to fix this issue in an upcoming customized build. Currently they only support fresh installations with their image.
If you do have a support contract with HPE, you may open a support case with them, and ask for an ETA.
Are you sure previous 6.7 installation was from HPE image ?
Hi Rajeev yes positive i'm a full HPE house . I have a 2 server test lab tried to upgrade it failed so did a fresh install using same custom HPE image. Not in a rush to go 7 so i can wait till HPE updates the image. Have flushed all servers with latest HPE SPP so just waiting to upgrade to 7 when ready. ESX host configuration backup from 6.7 to 7.0 not supported so HPE have to fix this issue as it's not ideal for me to do fresh install.