This is certainly odd! I verified all of the code is in there on the provided maps so this should work. If you could setup your AP to datalog the following monitors it would help in diagnosing the issue:
(C) LC Mode
(C) Rev Limit LC
(C) Rev Limit LC-S
Accel. Pedal Pos.
Engine Speed
VSS Rear Average
Additional monitors can also be in there, but these are the most valuable for the issue at hand.
To activate the Soft Launch Limiter on the OTS maps the following requirements MUST be met:
1. Rear Average VSS must be < 7.0 mph
2. Accel. Pedal Pos. must be > 90%
3. Cruise Control "ON" button must be HELD
There is no clutch pedal or gear requirement, you can test the feature quite easily while stationary. It's very common for the APP requirement to be forgotten, make sure your foot is on the floor!
Cheers,
-Braden @ COBB