Adafruit STEMMA Soil Sensor - "ERROR! seesaw not found"

I recently received my Adafruit STEMMA Soil Sensor and followed the instructions here: Overview | Adafruit STEMMA Soil Sensor - I2C Capacitive Moisture Sensor | Adafruit Learning System

When I run the example code with my Arduino Uno, the serial monitor only prints “ERROR! seesaw not found”. I have checked the pin connections and used an i2c scanning sketch, which couldn’t find the device. I know the Arduino works with other i2c devices. I’ve also tried both 3.3V and 5V supply voltage.

^Photo of setup (Yellow → SCL (A5), White ->SDA (A4), Red → 5V, Black → GND)

From other sites, it looks like this is a common issue with this sensor. Are there any suggested fixes or should I request a replacement?

Thanks in advance!