Part configurations not showing in Assembly Design Table Dropdown

I have an assembly with a number of configurations, each configuration has different configurations of the parts within the assembly.

I've added new configs to a part and now when I edit the design table within the assembly, the cell drop-down to select the parts configuration does not show the new configurations.

As you can see, the configurations for 344 od - 67 lg are in the drop-down in the model, but not showing when editing the design table.

Any solutions greatly appreciated.

SolidworksConfigurations/design Tables