Graph is not plotting anything

In my chemistry lab of Standardization of permanganate solution when I tried to do the lab, graph is not plotting anything.
I tried to restart it many times but it didn’t work at all.
Everything is working fine leaving graph whih remains empty during the whole time.

@Manveer I answered you with your support ticket, but here is a bit more information.
We just discovered a tiny bug this week that someone else pointed out to us due to the A-B Standardization activity. You won’t have any data popping up on the pH graph and the data won’t save until you X our the conductivity meter display. For some reason it wasn’t connecting the pH data to the graph when the conductivity meter was on. We’ve corrected the bug and our next release doesn’t have that issue.
Hope that helps-