Turns out that this support document solved the issue :)
https://support.apple.com/en-ca/HT201295
Before resetting the SMC, try these steps:
Shut down your Mac.
Press and hold the power button for 10 seconds, then release the button.
Wait a few seconds, then press the power button to turn on your Mac.
Max
Topic:
App & System Services
SubTopic:
Core OS
Tags: