Post Instal Root Patches Greyed out

Hi Folks, I originally posted this on the OCLP reddit page but it has dropped down the list without anyone having an idea. Not sure if it is too obscure or too difficult to diagnose on a forum like this.

I have a MacBook Pro 9,2. OCLP 1.5.0 Currently on Catalina (10.15.7), I had another one which worked without issue that I gave to my brother and this one which I aim to be for my daughter. I have re-started and installed lots of times. Currently just erased (APFS and GUID) on everything and clean instal macOS. Catalina wanted an upgrade so I did that first. Then downloaded OCLP 1.5.0 but as it has done on the many times I have been down this route (with High Sierra as well) . As the title says it won't root patch and subsequently won't upgrade to Ventura (my aim). I have replaced the HDD with a refurbished SSD.

Anyone able to guide me through it. Thanks in advance.

submitted by /u/KeyffSmyff
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