In NX2212 the save time is more compared to the save time in NX1946 for a part file having multiple bodies and each body having different assigned materials.
SolutionThis save operation behavior in NX versions from NX1953 onwards, is actually due to the publishing of materials to the Materials Table in Teamcenter.
From NX1953 onwards, the material of the individual bodies will be published to the Teamcenter Material table
This publishing of individual Body's assigned material details to Teamcenter may take more time depending upon the number of such individual bodies in the part file.
From NX2306.8300, this behavior can be controlled through a customer default setting.
If the user would like to have the same save performance they had in the past, they should go and toggle this Customer Default OFF.