Problem syncing sound by waveform - visually OK...

I have been trying to sync the sound from my Zoom H6 with the sound from my camera using waveform. Look at attached screenshot:

Screenshot of synced timeline

Capture.JPG (44.84 KiB) Viewed 580 times

I have numbered things like this:
3) My original file from the camera
1(left)) The part of the original sound file that was synced and added by DaVinci.
1(right)) The original H6 sound file where 1) is the part that corresponds to 3) from the camera

As we can se, visually this is all fine. The sync seems to have worked. 1) and 3) seems to be synced correctly.

But! When I play back 3 with the camera sound muted the sound that is played back is 2). This is the sound from the start of the Zoom file. Let me add that the long Zoom file on the right of the timeline was added by me afterwards just to get a grip on what was playing.

Am I doing something wrong here? I mean, visually all seems correct and waveforms match 100%. It just seems like sound is not played from the part of the file that is visible on screen, sound is played from the start of the sound file instead. A totaly different waveform.

Help

I now tried once more, and guess what. This time it worked and synced the sound perfectly, both visually and by ear. Wonderful

Time will tell...