Building virtual raster in QGIS?

Question

I have attempted to build a virtual raster in QGIS to avoid working with several smaller mosaics.

That ended up well, and I saved all of these individual files as tiff files. Now I am trying to save all of these as one large file, but whenever I attempt to VRT, the result only shows up one of the several images.

How is that?

Answer 1

I found out it had to do with projection. Each mosaic had a different projections, so once they had all been reprojected into the same utm, VRT was created succesfully.