Seems that there is an issue with latest release. Step 8 of installer is failing with a readline error. Am now rebuilding last weeks iso (Openbox based) to see if that fixes the error. I tested my i3 iso today and it installed fine under a VM. Am concerned if issue is related too UEFI, possibly boot loader failing.
Will test my new iso to see if I can find issue before carrying on with i3 version.