ok great..

so you will notice that most of the Dims have arrows and are all the same in text size (these were done with the normal Dim tool) except the one on top of the prep tent (5000mm) and the on on the servery (2500mm) where i used the Dimlinear tool

all was going fine as i worked my way clock wise from the bottom up until i hit the prep tent which has a break in the line which is why i had to switch tools. 

from this point the text size shrunk and i had to manually go in to the dimension to resize the numbers. but ive lost the arrows too..

i did not change anything during the whole process so it seems to have changed when i switched tools