So I was doing some other poking around and see what is new in 24.7 and noticed that in the reporting health dashboard there are odd gaps of data even though the firewall was online and running without issues. I checked various sections (e.g., Packets, Traffic, System, etc.) and it is all there. I upgraded my firewall last night starting around 18:44 and you can clearly see in the attachments the data and displaying of that data was rock solid and after the upgrade there are around 30 minutes of data missing every other 30 minutes.
Let me know if any additional information is needed but I thought it was report worthy.
Still seeing this issue, I also as a tested reset my RRD data via the webUI and it still is happening.