I had hope that the issues with graphing had been sorted out in the latest release but it looks like some still persist. In the current release it appears that once you add a 3rd data set to graph the Y axis is doubled (i.e., displayed twice). I tested this using both virtual sensors and native AQ5 temperature sensors. Same issue.
This is what both graphs look like when displayed on an "Overview page." Notice that even though the 3rd GPU is graphed under "Analyze data" it's completely missing when the graph is displayed on an "Overview page."