I want to create a mosaic dataset with 400 1m pixel size orthophotos. Each image is about 1 GB and 20,000 x 20,000 rows and columns. I created pyramids beforehand. Now I am trying to add these images to a Mosaic Dataset. For hours it just stays at 0% with messages in attached picture. I am using ArcGIS Pro on a 64 GB Xeon processor. Any idea if this will work?

Sincerely