Your MBP uses Non-Volatile Random-Access Memory (NVRAM) to store various settings. It may be worth resetting this.
To reset the NVRAM on all Late-2016 and 2017 MacBook Pro models (with and without Touch Bar) follow these steps:
- Shut down your MBP. Yes, a full shut down, not just logging out.
- Press the power button and then immediately press the commandoptionpr keys.
- Keep these keys pressed down for at least 20 seconds!
- Let go of the keys and let your MBP reboot normally.
Note 1: When you log back in you may need to readjust some of your system preferences (e.g. speaker volume, screen resolution, startup disk selection, time zone information, etc).
Note 2: If your Mac is using a firmware password, you will need to disable the firmware password before resetting NVRAM.