Hello people, I was having terrible problems with temperatures fluctuations and my prints didn't start when using octoprint because the temperature was too unstable. Recently I found a simple fix using a 10v1000uf capacitor in the board 5v pins. Now take a look at my temps after this change:
They are pretty stable!!! and finally started to print from octoprint. You can do this really quick and for cheap, I found this information in the following video (method 2):
I hope this helps people from the thread "Printing stops" and others reporting different issues.