Inserting a part studio, in an assembly, in another dodument.

Hello, i have a issue with the following:

I have a document where i have made an assembly, with part studio's from the dame document, BUT i ned to also insert a part studio from another document.
I use "other documents" in he function "Insert parts and assemblies", to get the part studio from the other document that i want BUT it is like this "imported" partstudio is not updated when i change it in the original part studio, for example i want to use transform to change size, but it does not change size in the assembly, in the other document.
Also, when i use "other documents" in he function "Insert parts and assemblies", it shows part studios that i have deleted to trascan long time ago.
It is like there i a sort of update issue with the "other documents" in he function "Insert parts and assemblies"…….what do i do wrong?

Regards
Martin