MIssing Data from Line Graph

Im relatively new to Google Sheets and this is my first time making a line graph with it. Im trying to plot a Weight/Chicken vs Date graph. For some reason, the data for the 27/1/25 is missing and is not plotted in the graph. The data is from a formula and Ive checked that its formatted as a number. May I get some help on this?

https://drive.google.com/file/d/1aHc3ehjAJL4GgTvoybsRfIisETHlB_kD/view?usp=sharing

https://drive.google.com/file/d/1DEPyJrJXLlyGMM8KsFEoflFGpkcttOxx/view?usp=sharing