Dimension doesn't work with levels

[Anonymous]

Hi, When I select a level I used to change the dimension, but I can't modify them anymore and they are not locked. Thanks for help

[Anonymous]

Find out, I should activate the dimension, but I can't active forever. Should I do it each time?

[Sahay_R]

Can you share a file that shows the behavior?

Are the levels from a linked file? 

[barthbradley]

Sounds like you have hidden constraints. Toggle the "Reveal Constraints" button to investigate. 

[Anonymous]

The file is so big, however, the levels are not linked, I am just wondering why some of the levels have 'active dimension' and some don't. Thanks

[Anonymous]

The file is so big, however, the levels are not linked, I am just wondering why some of the levels have 'active dimension' and some don't. Thanks

[kadmonkee]

by your image

the levels that are blue have views associated to them

the levels that are gray do not have views associated to those levels.

[barthbradley]

...because the file IS so large. This is typical behavior. Revit has reached a point where it won't show temporary dimensions because it would impact performance. 

[ToanDN]

Run this test:  create a new elevation or section and see if you can change the grid elevation without activate the dimension.  

[Anonymous]

When I create a new level I don't have active dimension.