It seems like the old post is missing some lines:
<format id="{A438A617-1434-4A24-B1B7-48980F28345B}" descID="9430" desc="Name, Lon, Lat, Alt, Omega, Phi, Kappa (character-separated)" reader="CapturingReality.Import.CSVFlightLog">
<parser allowedSeparators=",; &tab;" comment="#" showIgnoreFirstline="true" qualifiers=""optional" >
<Image index="0" format="name.ext"/>
<Longitude index="1" format="degrees"/>
<Latitude index="2" format="degrees"/>
<Altitude index="3" format="value"/>
<Omega index="4" format="value"/>
<Phi index="5" format="value"/>
<Kappa index="6" format="value"/>
</parser>
</format>
Also, as the omega, phi, kappa are in degrees, you can try to use format set to degrees for those values.
As longitude and latitude are in degrees you need to use those values there. In your example it seems more like meters coordinates (531877.713 6173680.343 1510.588). In that case you will need to use X,Y, Altitude option for the flight log. You need to use the proper option for your coordinates. It matters if it is X/Y or Lon/Lat. Also, the order of the coordinates is important.
As your system is using meters (ETRS89 / UTM zone 32N - EPSG:25832) you should use X,Y option, not Lon Lat