If I read it correctly, it appears to be a PCM software issue. And the PCM is very likely to use different strategies, i.e. different pieces of code, with the 5.0 than with the EB. Maybe there's a bug in one of them, but not in the other.Not sure why it's "5.0" specific, as one would think that any 2019-20 MT82 equipped S550 would have the same issues.