1. Ensure 5.5.2-2706 for the HyperFS version or higher. 
2. Replace the fruit.so file in the /usr/lib64/samba/vfs folder with a newer one from Scale Logic support reachable here: support@scalelogicinc.com
3. Go to the SONG SMB menu, then "advanced", and add the bolded type items from below, save, sync the cluster if more than one node, and reconnect and test FCPX Library usage.  
 
Example share "fcpx":

[fcpx]
shadow:fixinodes=yes
shadow:snapdirseverywhere=yes
fileid:algorithm=fsid
guest ok=no
veto files = /:2eFBCLockFolder/.FBCLockFolder/:2eFBCIndex/.FBCIndex/:2eDS_Store/.DS_Store/TheVolumeSettingsFolder/TheFindByContentFolder/Temporary Items/Network Trash Folder/.AppleDB/:2eVolumeIcon.icns/.VolumeIcon.icns/Icon\077/.AppleDouble/.AppleDesktop/desktop.ini/RECYCLER/
inherit acls=yes
vfs objects=catia fruit streams_xattr acl_xattr bwfs shadow_copy2 fileid
ea support=yes
fruit:resource=file
fruit:metadata=netatalk
fruit:locking=netatalk
fruit:encoding=native
browseable=yes
writable=yes
printable=no
wide links=yes
path=/fs_share/genesis
shadow:snapdir=.snapshot
guest only=yes
acl_xattr:ignore system acls=no