Official comment

This is the overlap report for the one on the 14th:
This is the one from the 29th:
The data for the first one looks fine. The second one is missing a lot of images. It doesn't look like the flight log for today has been synced yet so it is hard to say what actually happened. Sync that and let us know.
But on the 24th the flight looks like it took all of the images OK. It was flown at 76 meters with 80/80 overlap. It is a little weird because it says 227 images were triggered but only 53 were received. That means something is going on in the camera that the files are not getting written. This is a little bit weird because the red dots on the flight detail in MME only shows a few errors. Not 80% of the images. Try flying after using the DJI app to freshly format the SD card.
The good news is that you were pretty lucky and the map was still able to render properly.