Hi Chris, Thanks for reply.
I have now done all of the above and still have the same issue.
Cleared cache, no change.
Logged into twitter and got access token no problem. Saved changes. generated shortcode and put it in place of the previous one (it was the same BTW, but I did it anyway), and did a CTRL+F5 on the site to reload without cache.
It still shows the same tweets as before. There are 4 newer tweets which are not displayed.
