New issue just came up and I’m most confident that it’s stemming from the recent BIOS update. If my laptop has been off or sleeping for a long time such as me turning it off before heading to bed, it forgets the expansion bay SSD.
I’m going to do a test and update the bios under the basic condition: laptop plugged into the wall with the lid open. I updated the BIOS before while it was docked with the lid closed. I just updated it now, undocked, and lid open. I’ll use it as normal today, will turn it off before I go to bed, and I’ll get back to you about it tomorrow.