What software version are you running on your unit? 1.3.1
What settings are you using for your unit? Hysteresis (0.1C), Cycle Delay (10 minutes on cooling, 3 minute on heating, but do not have heater plugged in at the moment), Control Mode (PID)?
What do you mean by session 2 is not uploading? I do have two sessions running. The first session is controlling both heating and cooling through probe 1. The second session is not controlling anything and is using probe 2. Both session 1 and 2 commenced at the same time, but you can see there are a couple of gaps in the session 2 data and the last datapoint is from 17 hours ago. This keeps happening. Sometimes switching the BB off and on restores the logging and sometimes it restores it spontaneously. Session 1 is performing perfectly.
Link to session 2 data. https://brewbit.com/dashboard/devices/601/sessions/4329?token=d05b711a7cd4029b36918b9ec7c23124
Can you take a screen shot of your temperature profile that you created and post the picture so we can look at it, since the plot that you posted only shows what has been executed from that profile. I attach the temp profile used for session 1.