Allix
Can you tell us which version of Drone2Map you're using? Is it 2022.1, and a Standard or Advanced license?
I expect the problem may be regarding overlap. Two things you can check:
1) many drones report incorrect Z values - can you verify you have accurate values for each image (orthmetric height, above sea level - not height above ground, or ellipsoidal height). This blog http://esriurl.com/correctDroneZ was written for the case of capturing video, but there are useful resources if you need to calculate a correction for your height values. (e.g. "Use this ArcGIS Online map to find elevation values for the terrain of the project site")
2) ignoring the GPS metadata, if you visually evaluate a few image pairs (along and between flightlines), did you successfully capture ~70% overlap or more?
(#1 is intended to tell us if the metadata might be *indicating* the images have insufficient overlap. #2 will tell us if your images *actually* have insufficient overlap)
If you could let us review a block of images we could advise further - e.g. minimum of 3 flightlines, 5 images per line...
Thanks
Cody B.