The problem is with the overlay. The variables defined in the primary bundle are not available to the overlay. The overlay is parsed independently of the primary bundle, so I'm guessing that the YAML parser is translating the variables to be empty.
The problem is with the overlay. The variables defined in the primary bundle are not available to the overlay. The overlay is parsed independently of the primary bundle, so I'm guessing that the YAML parser is translating the variables to be empty.