Completion menu not poping up

[PolarianDev]

My init.vim

set relativenumber
set nu
set hidden
set incsearch
set scrolloff=6
set termguicolors
set shiftwidth=4
set tabstop=2
set softtabstop=2
syntax enable
set smartindent
set clipboard+=unnamedplus
filetype plugin indent on
set signcolumn=yes
set expandtab
set cursorline
set nowrap

set completeopt=menuone,noinsert,noselect
set shortmess+=c

call plug#begin('~/.vim/plugged')
Plug 'phanviet/vim-monokai-pro'
Plug 'neovim/nvim-lspconfig'
Plug 'nvim-lua/completion-nvim'
Plug 'preservim/nerdcommenter'
Plug 'preservim/nerdtree'
Plug 'OmniSharp/omnisharp-vim'
call plug#end()

colorscheme monokai_pro
highlight Normal guibg=none
highlight EndOfBuffer guibg=none

lua <<EOF

local nvim_lsp = require'lspconfig'
local pid = vim.fn.getpid()
local omnisharp_bin = "/usr/bin/omnisharp"
local attach_callback = require'completion'.on_attach

nvim_lsp.rust_analyzer.setup({ on_attach=attach_callback })
nvim_lsp.clangd.setup({ on_attach=attach_callback })
nvim_lsp.omnisharp.setup{
    cmd = { omnisharp_bin, "--languageserver" , "--hostPID", tostring(pid) };
    on_attach=attach_callback
}
nvim_lsp.cmake.setup{ on_attach=attach_callback }

vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(
  vim.lsp.diagnostic.on_publish_diagnostics, {
    virtual_text = true,
    signs = true,
    update_in_insert = true,
  }
)
EOF

" ====== KEYBINDS ======
let mapleader = " "

" lsp
nnoremap <silent> gd <cmd>lua vim.lsp.buf.definition()<CR>
nnoremap <silent> <leader>h <cmd>lua vim.lsp.buf.hover()<CR>
nnoremap <silent> gD <cmd>lua vim.lsp.buf.implementation()<CR>
nnoremap <silent> <leader>r <cmd>lua vim.lsp.buf.references()<CR>
nnoremap <silent> <leader>d <cmd>lua vim.lsp.buf.declaration()<CR>
nnoremap <silent> <leader>a <cmd>lua vim.lsp.buf.code_action()<CR>
nnoremap <silent> <leader>[ <cmd>lua vim.lsp.diagnostic.goto_prev()<CR>
nnoremap <silent> <leader>] <cmd>lua vim.lsp.diagnostic.goto_next()<CR>

" nerd commenter
nnoremap <silent> <leader>cc <cmd>NERDCommenterComment<CR>
nnoremap <silent> <leader>cu <cmd>NERDCommenterUncomment<CR>

" nerd tree
nnoremap <silent> <leader>t <cmd>NERDTreeToggle<CR>

How to reproduce
Open A file and attempt to write code, I was working on my projects a few days ago and it was working fine, I come back after the latest neovim update to find nothing working. I have tested it and it is the version of neovim which is the issue, so I recommend if anyone else is having this issue please rollback your neovim version, if you are using arch linux like me, I advice adding it to the ignore packages to stop it upgrading.

I could not find out what was causing this issue, I checked the health and the health check was identical, I presume whatever API changes which were made in the latest neovim version must have impacted the menu being drawn to the terminal.

Expected behavior
The menu should automatically pop up while typing, I have not disabled it.

Versions
0.5.1 BROKEN
0.5.0 WORKING

[PolarianDev]

I have realised that I have not explicitly stated the issue, the completion menu will not pop up when it is supposed to, I presume it is failing to draw to the terminal. Sorry for not being more clear

[sergekir]

#399 (comment) this solution helped me

[mrkz]

@sergekir I confirm that change also resolved this issue for me. looking forward to the fix 😃

EDIT:
Also, wouldn't this be a duplicate of #399 ?

[PolarianDev]

I have yet found the time to check the solution outlined in #399 and #405 is a duplicate.

As for #399 it was not named extremely well for my search parameters and therefore I did not see it. When I get time I will take a look and see if that solution also works for me.

Thank you :)