Hello. I`m currently doing a proyect of 2.200 has. I divided it in 44 proyects of 50 has approx each one. There is no problem merging from first to the 10th proyect but then when I try to merge the other, the program crashes. I already updated my Nvidia driver and I don´t erase previous merged proyects. What can be the cause of this?. Total of pictures is 25.040 and every proyect its about 650 pictures each.
Try it with a fewer number of larger projects. With proper hardware you can process many more images than 650 in one project.