The assembly file only records some assembly relationships between parts, and the features of parts are not stored in the assembly file. If you change the part features, the assembly will also change. When the changed features affect the assembly relationship, it will be a mistake to open the assembly again!

After 20 10, assembly supports the internal preservation of virtual parts. When you exit the assembly, you will be prompted to save the newly created virtual parts internally or separately. If you choose to save internally, the volume of the component will increase accordingly.