Need more details. How many photos? How large is the area? What is the flight plan? What camera is used? Please post some screenshot after aerotriangulation. Regarding RTK/PPK there seems to be some unexplained issues regarding vertical mismatch even using precalibrated camera and accurate positions(ST7000882953). I have got different results using only RTK positions and using RTK and rotation - https://communities.bentley.com/products/3d_imaging_and_point_cloud_software/f/contextcapture-descartes-pointools-forum/158732/rtk-ppk-and-gcp/477087#477087 . If GCPs are surveyed using GNSS then I would recommend adding your local geoid as custom override vertical coordinate system - https://communities.bentley.com/products/3d_imaging_and_point_cloud_software/w/wiki/38929/how-to-add-a-geoid-model
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