Thanks for looking at that Rob. I really appreciate it.
But I didn't change anything when I added the citation the first time. I just used the sourcer on the ancestry page and copied it to clipboard, and then pasted it straight into the profile page. Then, when I saw the suggestions, I tried to figure it out but couldn't - hence put the question on here. Aaron Gullison (as per below) went in and fixed the one I had given as an example.
I then went in and tried to fix the other two, one easily and the other not so easily. I think I might have added too many spaces. Anyhow, the point is, I hadn't changed anything from copying the citation to adding it to the profile. It was only when I got the suggestions alert that I looked into it.
So I don't understand how it went wrong in the first place?