New Sensor problems

Greetings
I just purchased a Garden Breakout board for my RaspberryPi 3b. I also purchased an SGP30, a bme680, and a mics6814. I installed the software for the breakout garden, also installed the python software for each of the sensors.
The I2c detect inquiry shows all three sensors are present but only the bme680 seems to work correctly.
I cannot get the SGP30 and the mics6814 sensor to work using the python examples provided by Pimoroni.
If anyone has experience with these sensor please help.
Thanks
Tom

Could you show the relevant piece of code you are using, and the output of the i2c detection command? A code formatting tool is available in the editor.