Space leader key hijacked with rainbow key mappings disabled

[Amparose]

This plugin seems to hijack the space key to create a line fold or something far less useful than my leaderkey, which is space. Using Neovim .7.

I have let g:disable_rainbow_key_mappings = 1 but this is still happening.

Assuming it is this plugin as if I :set ft=md my space leaderkey works as normal.