Issue with JHM launch Control

Hi Guys, after some help with the launch control feature with the JHM RS4 tune.
I was asked by another RS4 owner from Australia If I have had any problems with the LC feature on the JHM tune.
His issue was that when he launched with LC the process starts ok, revs go to 5.5k rpm bounce there as it’s supposed to, after sidestepping the clutch revs then drop to 3.5k and take off.
The problem is that as the revs go past 5.5k it goes into launch control mode again and the revs do the stutter for 1 to 2 secs then revs out cleanly after that.
Second gear is fine. It only does it when using LC, starting off without LC is fine.
He thought it was because he had the inlet manifold flaps deleted, so asked if I could try it with mine.
I had a go this morning and it did the same thing. Traction control was off.
It looks like it may be due to the “Rest of World” ecu type, or maybe RHD clutch pedal sensor?
The guy from Aus is in communications with Jake to see what the issue is but I thought it may help if anyone that has the rs4 tune with LC could chime in.
Especially if you are not from North America.

Cheers,
Grant.