systemctl hibernate gives error not enough swap space for hibernation although the swap space in use is four times the RAM size

Question

I already know that in Linux systems systemctl hibernate will not allow hibernation if there is not enough swap space for hibernation. But in my case the swap space was set to 32 GiB while the RAM installed was 8 GiB. This error was given when the swap space was not used at all. I want to know why this error is occuring and how can I solve this problem. If it helps, this error occured on Kali Linux (kernel x86_64 Linux 5.3.0-kali3-amd64). (I am sorry if this question appears too 'novice like' for a Kali Linux user)

Here is a sample output:

# systemctl hibernate
Failed to hibernate system via logind: Not enough swap space for hibernation
# free
              total        used        free      shared  buff/cache   available
Mem:        8135920     1226892     5975908      254980      933120     6398272
Swap:      33555452           0    33555452
# swapon
NAME       TYPE      SIZE USED PRIO
/dev/sda10 partition  32G   0B   -2
#