Add field from calculation transform bug

[DrPlague1656]

What happened:
Whenever I have 2 query's in grafana I cannot do any binary operation transform without getting NaN as a result even though in calculation I have selected last non null value.

As you can see by the attached screenshots, the 2 query's work seperately but when I have both of them I cannot do a calculation using both of them and only a calculation with the 2nd query gives me a result. Using the first query results in Nan even though when I only have the first query it just calculates as it should

What you expected to happen:
Just have the 2 numbers add up to:
5.764.421.259.264

How to reproduce it (as minimally and precisely as possible):
This is pretty difficult as I am using the PRTG plugin for my query's . This however shouldn't be the issue as I have explained above. The numbers do work when I don't have both query's.

Anything else we need to know?:

I also had this same problem when using InfluxDB getting data from a VCenter server but I have since given up on that because of the NaN issue.

Environment:

• Grafana version: Grafana v8.1.0-32440pre (72d296843d)
• Data source type & version:
  Data Sources / PRTG 4.0.4
  https://grafana.com/grafana/plugins/jasonlashua-prtg-datasource/
• OS Grafana is installed on:
  Docker Container running on Ubuntu 20.04
• User OS & Browser:
  Windows 10 & Edge Browser
• Grafana plugins:
  PRTG
  Worldmap Panel
• Others: /

Calculating between the 2 not working:

Calculating with only the first one:

Calculating with only the second one:

Calculating the first one with both query's

Calculating the second one with both query's

(Result is the same if I switch the query's around, the first one becomes undefined)