Attempt to clarify file

I know you guys must be getting sick of me by now. Apologies. I am an active jazz musician, trying to learn your approach which comes from a different direction.

I am continuing from the 2 channel sostenuto; isolated question December 2023 conversation. I have changed the pedal to CC 69, and the input to usb B, otherwise nothing has changed.

I attempt to play a note, press the pedal, the note sustains, the channel changes to channel 2, I play a note over it, release the pedal, all notes are off.
Your problems are
– the note is not sustained
– note on channel 2 does not get a note off command upon pedal up.

Here is the file
Sos on Pedal down, channel switch:csv file?.mhp (445 Bytes)

When I choose “export CSV file” I get the following. I have added the .csv so that it would be excepted in this post. did the command actually work?
note, 69pedal down, note.csv (823 Bytes)

I have studied what I can, and understand more than I did a year ago. I hope that we are able to resolve this this time. Thank you and all for your help!