I just found out that there is something wrong with updating of material on data cards.
I checked-out an assembly with all its components. Then I opened the assembly and selected all parts via the left tree structure. I changed the material of all the parts via the custom prop. tab. I saved the assembly. After that I saw that the parts had the indicator for a new version, this means they were updated.
After this I checked-in eveything back. The problem is, that the data card variable of the material did not update with the new material.
I tested this with other custom prop. and they get updated. Only the material is causing problems.
Does anyone experience the same problem? Is this a bug, or am I missing something....