Altium .edb not showing mounting holes


Hi all,
I'm new to Ansys so bear with me if there is a simple answer. When I export an Altium board using .edb and import that .edb into SI Wave, the board shape is correct but the mounting holes are missing from the model. I've tried a few different ways of making holes in Altium, but I still get the same thing, no holes when I pull the board up in SI Wave. Is this a viewer option within Si Wave I need to turn on or properly configure? Can anyone point me in the right direction?