Help needed with lastnonblank

Hi all, in advance thanks for helping out. 

I have a bit of a weird behaviour from lastnonblank which probably is due to my lack of understanding..

I've got two columns that are relevant to my question here one is [Scoring] which contains the score given at a certain date. It only contains data on dates assessments were done. Each row in my dataset represents a date and the column latest score in which I am attempting for powerbi to repeat the latest score for a individual. 

As you can see from the first picture i get lastnonblank to repeat the result as long as the next grade is higher than the first. if the next grade is lower as in this example it just ignores it completely. the previous grade to the one i've shown is 3 which should be showing until there is a new grade in the [Scoring] column.  I've also added a picture of the DAX. 

Help would be very much appreciated. 

Just to be clear, the result im looking for is for power bi to repeat whatever the last value in column [score] was based on the date.