<s>[INST] Take a look at my graph and see if you can identify any issues. I'm a proficient programmer but I don't usually do data visualization. 

I'm trying to show how the temperature in a city is changing over time, but my graph looks weird. 

(Unfortunately we're chatting in text and I can't actually share my graph)

However, I can describe it to you: My x-axis is time (datetime object) and my y-axis is temperature. It's a line graph, and the temperature is going up and down in a cycle every 24 hours, which is what I expect.

Here's the issue: the lines are cut off at certain points and there are gaps in the data that shouldn't be there. 

Do you have any ideas what might be causing this?[/INST]