Help! cc123 all notes off problem

[Equal]

Hi guys,

For some reason the CC123 all notes off message keeps being written to spots in my midi tracks (and I dont want this).

My tracks were recorded with a normal stage piano (kurz weil) and I am using a simple piano vst (addictive keys)to edit and bounce them. I am not linking, routing, syncing or re-sending the midi to anything.

Can somebody explain this "seemingly random" behavior?

Thankful as always for your help.

[DarkStar]

Load a MIDI Logger as an input FX and double-check exactly what MIDI is arriving from the keyboard. Do that without any VSTis etc loaded.

[Equal]

Thanks, but the thing is we don't record with Reaper.

The midi is recorded in the music studio with pro tools and sometimes Cubase.
The midi is clean when I get it and start editing. However when I export it, sometimes it becomes corrupted with the cc123 messages.

Also, sometimes it seems to happen when I edit different takes and glue the items.

Anybody any thoughts?