Hi p0ke thanks for the reply. I ran the test tool and it did recognize my flex. It shows LEDs to be 32 and mode to be 2. When I set the CurrentColor however, only the first LED changes color. Is that expected behavior?
Interestingly, the python BlinkPulse music visualizer works perfectly (https://forums.blinkstick.com/t/blinkstick-visualization-showcase/549)