Just for other customers' reference, this problem was also reported on our help desk ticket system. The customer rolled back the software to V8.3.22...
We have not removed any of the patches. It's just that some OSes do not have the patch implemented. The 2 VF GTS controllers must have had different...
The fault index table uses Cummins fault codes so you need to use the P code table in the tune file to know exactly which Cummins fault code is using...