Closing the symbol searching window properly

[AlphabetsAlphabets]

So COC has a keybinding that opens up a new window at the bottom and lets you fuzzy find symbols throughout your project, the problem is sometimes I hit the keybinding by accident, and the window shows up. The problem is with closing, I can't find any other way to close it other than with control+c but closing the window that way causes your cursor to disappear. It remains missing even after exiting vim. I can still type within vim and the terminal but the cursor is just gone.
nnoremap <silent><nowait> <space>S :<C-u>CocList -I symbols<cr> this is the keybinding for anyone wondering.

[chemzqm]

Use <Esc> instead of <C-c> which can't be detected.

[AlphabetsAlphabets]

Using <Esc> doesn't work. Is there a way to bind this to a different key?

[chemzqm]

<esc> should always work, can't reproduce your problem.
Checkout :h coc-list-mappings

[AlphabetsAlphabets]

Does it have anything to do with the fact I mapped ii to have the same function as <Esc>?