Clicking the Play button in the launcher does nothing (CDDA or CBN)

[spectrefps]

First time using launcher, running on Windows 10 64-bit. After installing the latest stable versions of Cataclysm DDA and Bright Nights, clicking the Play button within the launcher doesn't seem to have any effect (for either branch). No error popups, no windows, nothing. This is my first experience with Cataclysmr (as well as Catapult), and I was curious if anyone else recently had similar issues with the launcher.