My original post now seems to work perfectly, so maybe Find My Past has updated something. I might add that this is not something that I found for the first time today, it has been bothering me for months, so it's not just a temporary mistake.
However it only seems to be fixed for the Weekly Dispatch. If you try searching for "Slate-Club" on Reynold's Newspaper for 14th December 1930, the link shown doesn't work, but by using the method provided by cuffie81, the article can be found on Page 8, even though they say there are only 3 pages. How can you have a newspaper with 3 pages anyway.