dgunwin

Thank you so much for taking the time to write this detailed answer. I’ve now attempted to implement it.

I just wanted to write down below what my experience was, in case it helps any one else out in the future.

When I got to step 1 of your process I could actually see that my Custom Post Types were still being recognised by WordPress – I could see this because they were still displaying in the left hand menu of the dashboard. So there was no need to re-create them. (In fact when I tried to create a custom post with the same name, I got an error message saying it already existed).

My problem was that when I tried to edit the content of a custom post, I would get a blank screen.

So I moved on to step 2 of your process, to see if this would make a difference. However, when I went to Custom Fields tab, I got an error page saying ‘You do not have sufficient permissions to access this page.’ (I tried logging in as two different users as admin, and still got this problem)

A CCTM upgrade was available (Version 0.9.7.13). So I backed up the whole site, hoping that this upgrade might do something. Luckily for me, after I installed the upgrade everything started working! It is as if the update effectively re-booted the plugin.

I still get the ‘You do not have sufficient permissions to access this page’ message when I go to the Custom Fields tab. But we can live with this for the time being! Just glad to have the system working properly now.

Thanks again for your help. It really meant I lot to have your guidance and knowing that someone was there to help out. I’ll certainly give a donation for your time.