Are you using the weather adjustment? If so have you entered your key from weather underground? Is your location set correctly? Boston MA is the default and since they just got slammed with snow the percentage would be 0 for there. The water percentage default in the firmware is 100%. If it is showing 0 it was updated to 0.
If you go to the support pages you can find a list of all the API commands and how to use them. /jl is logs and /ja will show all settings.
If after checking through everything and making sure it is correct post your result from /ja just be sure to check it for sensitive information first.
Honestly it sounds like one of your settings didn’t save correctly, so even if you are sure you set them it’s worth a second look.