Looks like you somehow got the estimated charge_full value to be so high that the gauge stopped reliably detecting the end of charge (notice how it never reaches 100%), so it can’t adjust it down to reasonable values.
Charge the battery to full (until the red LED goes off), then turn the phone off, take the battery out for a few seconds and put it back in. Then let it discharge to 0 and charge it back to 100% afterwards. This should give the gauge enough rope to make its estimations better.
Although, to be sure: could you send another screenshot with the checkboxes at the bottom set to the same states as on my one? Smoothing may make this chart misleading.