Nokia 8110 4G Calendar Months

Foggy

Can anyone help...I appear to have 2 March Months on the calendar date selection wheel???? It goes Jan, Mar, Mar, Apr etc.... When the Mar (FEB) month selected it does put the entry into the correct month (Feb).

I have reset phone several times and made sure UK/GB is set in all location / date settings. and the date format example in settings is correct.

It works but is a bit annoying! Anyone got any ideas??