Details
Subassemblies are hidden in upper levels and want to reset them back to be shown.
Solution
Right mouse click on the top level assembly, select 'Occurrence Properties', and then make the changes in the 'Higher Level' column.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 764SP1
Product: SOLID_EDGE
Application: ASSEMBLY
Version: V109MP13
Function: COMPONENTS
Ref: 001-9186101