Problem with timeshift & btrfs

Timeshift says “partition has unsupported subvolume layout” when trying to create a snapshot. Using btrfs (very little knowledge).
My fstab:

# /dev/sdb5 UUID=fd732c09-058c-41d2-82c1-b0e2e4c0d342
PARTUUID=46e29daa-c52d-40f2-a62a-24f5c5ab1c4b	/         	btrfs     	rw,noatime,compress=lzo,ssd,space_cache,commit=120,subvol=@	0 0

# /dev/sdb1 UUID=2EF4-A8DD LABEL=SYSTEM
PARTUUID=7f946b0a-9f68-42e5-b022-7462ff5eb7a6	/boot/efi 	vfat      	rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro	0 0

# /dev/sdb5 UUID=fd732c09-058c-41d2-82c1-b0e2e4c0d342
PARTUUID=46e29daa-c52d-40f2-a62a-24f5c5ab1c4b	/home     	btrfs     	rw,noatime,compress=lzo,ssd,space_cache,commit=120,subvol=@home	0 0

# /dev/sdb6 UUID=38325dd2-f99f-4f59-90dc-91bf865cbadd
PARTUUID=d5fa2f79-b37f-4c81-91ae-53e53708d918	none      	swap      	defaults,pri=-2	0 0

Reinstalled again & the problem is fixed…don’t know what was the issue before.