[johngar]

I have tested this this on Cubase 6 as well as Pro Tools 9 on PC
Eucon 2.5.7.
The problem is the same for both.
Watching the EuControl.exe in windows task manager, whilst the transport is playing, the Memory value is "counting up" at the same rate about 40-50 bytes/sec. when you hit stop on the transport or you are not using the MC Transport or MC Control, just sitting there idle , the "counting up" stops
See my system specs below.