Please consider image formats limitations, when exporting large scale orthomosaic from Metashape Professional:
- TIFF format doesn't allow to save files larger than 4GB.
- JPEG format export is limited by 65535 pixels for any side of the image.
To avoid the format limitation issues you can:
- reduce the export resolution (m/pix) to fit the format limitations,
- use Split in blocks feature in the Export Orthomosaic dialog in order to export the orthomosaic in tiled blocks,
- use BigTIFF option for TIFF format export.