I tried both man and htop. Initially htop was restored fine however man (and neovim) were not!
iMy resurrect file looked like:
pane dotfiles 0 1 :* 0 nvim ~/dotfiles :/home/haseeb/dotfiles 0 nvim :/home/haseeb/.nix-profile/bin/nvim
pane dotfiles 0 1 :* 1 man cat ~/dotfiles :/home/haseeb/dotfiles 1 man :/home/haseeb/.nix-profile/bin/man cat
pane dotfiles 0 1 :* 2 htop ~/dotfiles :/home/haseeb/dotfiles 0 htop :htop
So I manually changed it to remove the .nix-profiles folder and leave it like htop like so (scroll across to see the final column):
pane dotfiles 0 1 :* 0 nvim ~/dotfiles :/home/haseeb/dotfiles 0 nvim :nvim
pane dotfiles 0 1 :* 1 man cat ~/dotfiles :/home/haseeb/dotfiles 1 man :man cat
pane dotfiles 0 1 :* 2 htop ~/dotfiles :/home/haseeb/dotfiles 0 htop :htop
Then it worked!
EDIT: The following lines in my tmux config fixed it 
resurrect_dir="$HOME/.tmux/resurrect"
set -g @resurrect-dir $resurrect_dir
set -g @resurrect-hook-post-save-all 'target=$(readlink -f $resurrect_dir/last); sed "s| --cmd .*-vim-pack-dir||g; s|/etc/profiles/per-user/$USER/bin/||g; s|/home/$USER/.nix-profile/bin/||g" $target | sponge $target'