Dimensions invisible size?

Hello everybody,

I wonder if this has ever happened to someone but sometimes when working with dimensions and changing their styles and model space scale, while working I click somewhere and suddenly the dimension is being selected, as if it had a huge invisible size. This is confirmed when I run the “boundigbox” command and the box encompasses an addiotional empty space.

If its not clear enough let me now and I can upload a file once on pc. Thank you.

Edit here is a screenshot and the file for clarity:

big dimension.3dm (147.5 KB)