However, I tried computing the dvh for OAR for eg. Brainstem, it computes and showed the volume and intensity values. However, the graph does not show anything.
First of all, please use a recent nightly, because 4.10.2 is two years old.
Second, if you open the individual structure list, then the DVH is calculated for the structure you have selected. It is usually better to calculate all.
@calvin.kohwy Thanks for the update! This looks like a bug (I think negative dose values should be treated as 0 during calculation). Does this occur in the latest preview version as well?