How to return a midi note?

[Sonorityscape]

When I use the FNG functions to return midi notes into a table, I later get an error (on the 3rd last line) saying that the argument got light userdata instead of a number. I've tried using other functions such as 'reaper.MIDI_GetNote' but in Lua it doesn't seem to return a midi note. Is there a function available that returns a midi note or am I using the FNG functions wrong?

item = reaper.GetMediaItem(0, 0) -- NEED TO CHANGE TO GET SELECTED ITEM!
take = reaper.GetMediaItemTake(item, 0)
midi_take = reaper.FNG_AllocMidiTake(take)
midi_note_count = reaper.FNG_CountMidiNotes(midi_take)

function get_notes_table(all_notes)
  
  for i = 0, midi_note_count - 1 do
    
    local midi_note = reaper.FNG_GetMidiNote(midi_take, i)
    table.insert(all_notes, midi_note)
    
  end
  
  return all_notes

end

reaper.ShowConsoleMsg(tostring(all_notes))

all_notes = {}

notes_table = get_notes_table(all_notes)

for i = 0, midi_note_count - 1 do

  local midi_note, selected, muted, startppqpos, endppqpos = reaper.MIDI_GetNote(take, i)
  
  if i + 1 > midi_note_count - 1 then
      
    break
        
  else
      
    local midi_note_next, selected, muted, startppqpos_next, endppqpos_next = reaper.MIDI_GetNote(take, i + 1)
    reaper.MIDI_SetNote(take, notes_table[i + 2], nil, nil, endppqpos, endppqpos_next - (startppqpos_next - endppqpos))
      
  end  

end

[Sonorityscape]

I seemed to have gotten the script to work except for the end where the MIDI note position values are being set (4th last written line). From my debugging, the note positions are being updated each iteration through the loop to reflect exactly what I want, but they're not changing position in the MIDI editor. Does anyone know how to fix this?

item = reaper.GetMediaItem(0, 0) 
take = reaper.GetMediaItemTake(item, 0)
take_fng = reaper.FNG_AllocMidiTake(take)
note_count = reaper.FNG_CountMidiNotes(take_fng)

function get_notes_table(all_notes)
  
  for i = 0, note_count - 1 do
    
    local note_fng = reaper.FNG_GetMidiNote(take_fng, i)
    table.insert(all_notes, note_fng)
  
  end
  
  return all_notes

end

all_notes = {}

notes_table = get_notes_table(all_notes)


for i = 0, note_count - 1 do

  local note_start = reaper.FNG_GetMidiNoteIntProperty(notes_table[i+1], "POSITION")
  local note_end = (reaper.FNG_GetMidiNoteIntProperty(notes_table[i+1], "LENGTH")) + (note_start)
  --DEBUG
  reaper.ShowConsoleMsg("start note " .. i .. ": " .. tostring(note_start) .. "\n")
  reaper.ShowConsoleMsg("end note " .. i .. ": " .. tostring(note_end) .. "\n")

  
  if i + 1 > note_count - 1 then
      
    break
        
  else
    
    reaper.FNG_SetMidiNoteIntProperty(notes_table[i + 2], "POSITION", note_end)

  end  

end

reaper.UpdateArrange()

[Sonorityscape]

It works after deallocating the memory.