Hi StefanF, the first things I would recommend are updating the system BIOS and SSD firmware.
There are some details I hope you can clarify:
“Since the original SSD was an mSATA SSD with a mSATA to SATA converter I swapped them. Again, the same result.”
So, none of the drives are working properly? Are both mSATA? Kindly share more details about the type of drives and ports inside your system.
Is the computer booting from the operating system installed in the other 128GB SSD or from the installation media?
Did you try contacting the system manufacturer? They may have other suggestions for this issue as well as a list of validated SSDs for this model.