if you edit the logfile with correct data , then convert the WD logfile to data file, then that will correct
I notice that you have the wind direction graph too wide
you can edit that, via the customisation, under setup, advanced/misc, main screen customisation
then enable customisation there and then set to make that not so wide using mouse left button and shift/ctrl key
then make sure to save your changes back in the setup,misc setup
The logfile had new data at the end.
Removed the old corrupted data from 07:21 in between.
Converted logfile, recreated graphfile [View]{Graph History}.
I have looked at the winddirection graph resizing.
Is it a problem that it is too wide, according to you?