You are seeing an artifact of how the variable browser displays variables by default.
To change this behaviour, use
Preferences -> MATLAB -> Variables -> Format -> default array format
and change the setting there to 'bank', and Apply
After that all values will be displayed in full with exactly two decimal places.
You might also chose to use 'long g' but 'long g' displays scientific notation for all values with absolute magnitude greater than or equal to 1e15 or absolute magnitude less than 1e-4.