Importing project events - loosing/shiftung parts data

hi all,

I recently tried to import my NUENDO project to a my new template mix. The tracks are mostly the same but I did a new mix setup. I used IMPORT FROM PROJECT / events & parts / absolute position / auto-assigned them to the tracks.

first the result:

The events have been created but 99% of the event data is gone. see the result screen:

This is the original:

The interesting thing is - when I open the event I kind of see some of the notes moved to a whole different positon, out of the event boundaries.
imported:

Original:

My template timecode did not change at all. Even in RELATIVE postition import, the parts data seem to shift:


I thought, maybe all data are just shifted, so I glued my track events to ONE to check. It seems that only a fraction of data has been impoprted.

These are my import options:

My template is ~2500 tracks
My Nuendo version is:

image

A wild guess: The issue might be somehow related to the fact that the MIDI tracks concerned are within a folder …?