Troubles migrating levels

I’m having some troubles to migrate the level I’m currently working at to the main computer at my studio. Basically when I migrate the level it only carries the Landscape and the BSPs used, no landscape texture, let alone the landscape painting, nor the vegetation painted vegetation. I tried to look for tutorials on the subject, but couldn’t find any. Also tried to find and move everything manually. If anyone could help, I’d appreciate it.

Does this happen when you right click on the level (map) and choose Asset Actions → Migrate? Are all dependencies shown properly in the Migrate windows? Do you target the migration to the Content folder on a network drive or what?