[Dx4win] upload to LoTW problem from DX4WIN

[Richard White]

Back in June 2019 I started playing with WSJT FT8 using DX4WIN to up load my QSO files to Lo Today I have discovered ARRL LoTW does not have 498 contacts I thought were uploaded between 29-06-2019 through 14-08-2019.
I think I missed something in DX4W that caused this. Here is what I  did: Open  DX4WIN – LoTW at top of page Left click it – Drop down box , click on “Export to LoTW” . I used an ADIF file in Documents each time when asked for a file. I put the ADIF file from WSJT FT8 into Documents. Don’t remember how I previously uploaded a file. 
Any help ?
Dick  KS0M