Here's another odd one. Sorry!
I have a single graph template, called "Server Technology CDU - Temperature Humidity and Dewpoint". It is used across 8 data queries. They are here:

(ignore the first one, it's old)
What's strange here is that the "Graphs Using" values are all very incorrect. When you look over at Management -> Graphs, I now see several entries for the same graph template:

Click the first one, I get 482 results. The second one yields 7 results:

The third one has 12:

The fourth one has 7:

The fifth one has 10:
