MCU PRO 4.0.3

Hi anyone using an MCU PRO v4.
There’s a software upgrade available to v 4.0.3
I’ve downloaded the .mid file that contains a sysex part, but when I play this in Cubase/Nuendo, it stutters after a bar or two, and the MCU unit doesn’t respond with dots, which indicate that it is receiving the data.

Anyone else try this or have observations?

I successfully did the upgrade tonight using C6.0.7.
Seemed to work fine, but took some trial and error to get it working.

Got it working, but had to use a “simple” Midi File Player…
All good!