Revit mass gross volume not computed correctly.

[Sfray58X9A]

I am having an issue with in-place mass Gross Volume not being calculated correctly. I started creating in-place masses and all of them were computing correctly. Then suddenly something happens that the gross volume just freezes and no matter what I change to the mass shape/size the volume qty stays the same... very frustrating. Happened once to me and i just started deleting things until it started updating again. But this time it seems to not want to work until i delete almost everything! No warnings appear. The gross volume simply appears to cease updating!

[L.Maas]

Do not see it.

What happens when you restart you Revit and/or your computer?

Also check for updates (Revit, OS, Graphics drivers)

[Sfray58X9A · Accepted solution]

Hi, thanks. 
The pictures that you uploaded make me think I accidentally uploaded the wrong Revit file! My apologies!

Nevertheless- I found out that the problem seems to be if there are either overlapping mass boundaries. Or the other thing too that seems to make the volume get messed up is if Revit let's you know that the lines are slightly off axis and may cause cause calculation errors. Make sure to address those two items and the volume starts to calculate again. 
Thanks for the response.