Density not updating

I have an assembly with multiple parts made of different custom materials.

When I open a part and run a mass properties, I get a density of 0.1273 pounds per cubic inch.

The issue is that when I open the material database, the density for that material is 0.0248 pounds per cubic inch.

Now, it was made from a pack and go of an old assembly, and our material when the original assembly was made was the higher density. However, this has changed, but why isn't the model updating?

The only way I've found to get the correct density to show is to open the part, apply a different material, then re-apply the correct material. If I do that, it updates, but I really don't want to do that for several hundred parts.

Does anyone have a solution for me?

Thank you!

Rick

SolidworksParts And Features