I expect a bigger project in the near future, so I started to work with chunks.
For testing I took a (quite small) set of fotos and first made a "normal" modell (just one chunk), which was ok.
Then I took 3 parts of the same foto-set and made 3 chunk and modells.
The chunks "overlapped", means, I used some equal fotos from chunk 1 in chunk 2 and from chunk 2 in chunk 3.
All chunks were calculated in the same way (medium allign and medium dense cloud).
The results of the single chunks were ok.
But after merging the 3 chunks to one chunk, there are ghosts and blurry parts, see attachment.
Where is my mistake ?