Possible explanations when this warning shows up at the end of the geotagging process.
This message does not necessarily indicate an error during geotagging. It's possible that all the images have been tagged. It's therefore better to check the .csv file or the tagged images in the OUTPUT folder. In case there are missing geotags, the cause could be among the following points:
1. There are no images selected
Check the IMAGES folder and make sure that the images are there.
2. The timestamps of your selected images and the trigger events recorded in your selected flight plan do not match well
Please check if you selected matching images and flight plan. If you selected them correctly and there is no other explanation listed, your images are most probably tagged correctly.
3. A high number of images were removed because they seemed to be taken some time prior to your flight
Most probably there were images on the SD card prior to your flight. If there is no other explanation listed, your images are most probably tagged correctly.
4. There are (#TRIGGERS) more trigger events recorded in your selected flight plan than selected images
This warning appears if the number of images does not correspond to the trigger events recorded in the PPK file.
In case you have moved the images from the SD card to a different location, check if all images were copied successfully.
This warning also appears, if the camera fails to trigger on all trigger events. This can happen especially in the case of high front overlaps or low GSDs due to fast trigger intervals. Check your data carefully, but normally geotagging should still have worked successfully.
In case the images are all there, read the next point how to check the PPK connectivity.
5. There are no trigger events recorded for this project
This warning can be caused because trigger events were not recorded due to a loose connection between the camera hotshoe and the PPK. Read the following article how to inspect the PPK connectivity.