Recovery of individual files or folders is not available and requires "Switch to Instant Access"
In some cases you may find you cannot access or recover certain files with an individual file restore from a VMware backup. However, it may be possible to recover these files with the "Switch to Instant Access" feature in the web UI. Some examples of these files include files from unsupported file systems (for example, btrfs or thin-provisioned LVM volumes) or unsupported file system features (for example, files with XFS reflinks or shared extents). Additionally, if certain mount points do not display in the browse tree or list view, you may have to click "Switch to Instant Access" to view these mount points.
See the NetBackup VMware Administrator's Guide for details.