Some updates: 0.1.5.0 firwmare does not fix the issue.
When turning off the machine, you have to make sure that it is not plugged into the power (so nothing should be connected to USB-C ports). It does not restore full functionality if I turn off and back on while plugged in. But it does fix it (temporary, of course) if it is not plugged in and I turn off and back on the machine.
Thanks for posting. Apologies that your system is not performing as expected.
If you still require assistance and the system is under warranty, you may contact me privately. Be sure to include your personal information (name, address, telephone, email) and your computer's service tag number in your message. Thanks.
If there is no warranty, then you could contact our Out of Warranty team to get a quote for a paid service request.