Work Space not loading up on nvim v0.4.4

[ankitpal1029]

I turned on the toggleworkspace and toggleautosave while in nvim on my project directory , it saves a file back to the save directory i had specified i.e ~/.config/nvim/sessions
but upon closing nvim with the buffers open with :q and restarting it the buffers don't restore

any idea what could be the issue here?