‘corrupted data’ display is normal after an update to 1.12, nothing to worry about.
I tried this again and it works flawlessly. What are your settings in
CONF->Midi->Output Config -> CH1, Mode?
You need to choose Sysex or Bend here
What files have to be in the root folder besides the firmware (and Scala files)?
In the INFO window incoming midi values are not shown.
Then maybe Midi in is not routed to CV? Otherwise you won’t see anything here