From the Readme for GOTG code V1.08 :
* NOTE: The current production of Guardians of the Galaxy (GOTG) uses core nodes
(address 8 and 9) with a new electronics component. These core nodes require
firmware version 0.51.0 or later. The GOTG software has been updated to V1.08
with this support. The previous version V1.07 (from 6/28/19) does NOT support
the new node board. If someone DOWNGRADES their new game from 1.08 to 1.07
these newer node boards will no longer work.
I'm sure this also holds true if V1.06 or anything older is put on there.