Hello Herbert,

I see now that this controller 23 bug has been around at least as of version 2.4.2. Since it hasn't been much of a nuisance so far (the bug has never been reported before, to my knowledge), I'm going to postpone the fix until after 2.5.2, probably in v3.0.

In the mean time, you can work-around this bug by resetting the controller 23 value at the end of the 4 measures. Hope that's ok with you.

Cheers
-- Mark