I'm having issues with a model from a series of drone photos, DJI Phanton 4 Pro. Once I have gone through the steps (adding photos, align photos, build dense cloud, build mesh, and build texture) I get stuck trying to build DEM or orthomosaic. I get an error right way that says "Grid size overflow". I have searched through some similar topics, but I have not found a solution for my problem. I am not using ground control points. I am just using the GPS data within the photo's EXIF data. The coordinate system for the photos is WGS84 and the reference settings for the chunk is also WGS84.
I'm just now realizing that the model is inverted on the Z axis, so that it is upside down. I can't figure out what the problem is. I'm using the same work flow that I have for similar projects, and I have never had this problem before.