Another update.... Some library changes have effected the code for the BMP280. If you want to use a BMP280 with this, you need to find and comment out the following lines:
digitalWrite(LED_BUILTIN, !bitState); - in D_Interrupts
digitalWrite(LED_BUILTIN, HIGH); // start with LED off - E_Setup
pinMode(LED_BUILTIN, OUTPUT); // LED output - E_Setup