Custom popup window highlight not working anymore and method not found

Result from CocInfo

  ## versions

  vim version: VIM - Vi IMproved 9.0 9000350
  node version: v16.13.1
  coc.nvim version: 0.0.82-b9c208ef 2022-09-07 15:41:25 +0800
  coc.nvim directory: /Users/stuff/vim/plugged/coc.nvim
  term: tmux
  platform: darwin

  ## Log of coc.nvim

  2022-09-08T16:18:27.255 INFO (pid:24000) [services] - registered service "languageserver.terraform"
  2022-09-08T16:18:27.258 INFO (pid:24000) [services] - terraform state change: stopped => starting
  2022-09-08T16:18:27.258 INFO (pid:24000) [services] - registered service "languageserver.golang"
  2022-09-08T16:18:27.265 INFO (pid:24000) [plugin] - coc.nvim initialized with node: v16.13.1 after 45ms
  2022-09-08T16:18:27.270 INFO (pid:24000) [language-client-index] - Language server "languageserver.terraform" started with 24002
  2022-09-08T16:18:28.149 INFO (pid:24000) [attach] - receive notification: highlight []
  2022-09-08T16:18:29.310 INFO (pid:24000) [services] - terraform state change: starting => running
  2022-09-08T16:18:29.312 INFO (pid:24000) [services] - service languageserver.terraform started
  2022-09-08T16:18:30.545 INFO (pid:24000) [attach] - receive notification: startCompletion [
    {
      word: 're',
      bufnr: 1,
      col: 0,
      disabled: [],
      filepath: 'redacted',
      indentkeys: '',
      blacklist: [],
      line: 're',
      filetype: 'terraform',
      linenr: 912,
      input: 're',
      colnr: 3,
      changedtick: 6
    }
  ]
  2022-09-08T16:18:33.349 INFO (pid:24000) [attach] - receive notification: showSignatureHelp []
  2022-09-08T16:18:33.379 ERROR (pid:24000) [node-client] - Error on notification "showSignatureHelp": method not found Error
      at LH.echoError (/Users/sebiwi/stuff/dotfiles/vim/plugged/coc.nvim/build/index.js:26:1869)
      at LH.<anonymous> (/Users/sebiwi/stuff/dotfiles/vim/plugged/coc.nvim/build/index.js:293:20970)
  2022-09-08T16:18:33.379 ERROR (pid:24000) [attach] - xy [Error]: method not found
      at je (/Users/sebiwi/stuff/dotfiles/vim/plugged/coc.nvim/build/index.js:29:233)
      at Wi (/Users/sebiwi/stuff/dotfiles/vim/plugged/coc.nvim/build/index.js:28:6872)
      at Immediate.<anonymous> (/Users/sebiwi/stuff/dotfiles/vim/plugged/coc.nvim/build/index.js:28:6719)
      at processImmediate (node:internal/timers:464:21) {
    code: -32601,
    data: 'textDocument/signatureHelp'
  }
  2022-09-08T16:19:40.572 WARN (pid:24000) [completion] - Suggest not triggered with input "", minimal trigger input length: 1
  2022-09-08T16:19:42.173 INFO (pid:24000) [snippets-session] - Unable to find changed placeholder, cancel snippet session
  2022-09-08T16:19:42.211 INFO (pid:24000) [attach] - receive notification: highlight []
  2022-09-08T16:19:44.507 INFO (pid:24000) [attach] - receive notification: showInfo []

Describe the bug

After upgrading coc.nvim to version 0.0.82-b9c208ef, the custom popup window highlight is not working anymore. The "incsearch" feature within the popup window is not visible anymore. I didn't change any highlight settings.

This may be related to terraform-lsp but Imalso get the following error message each time I try autocompleting:

[coc.nvim] Error on notification "showSignatureHelp": method not found

Reproduce the bug

Create file mini.vim (basic conf plus example coc configuration from the readme) with：

set nocompatible
set runtimepath^=/path/to/coc.nvim
filetype plugin indent on
syntax on
set hidden
" Default coc.nvim configuration from the README.md file
" Some servers have issues with backup files, see #649.
set nobackup
set nowritebackup

" Having longer updatetime (default is 4000 ms = 4 s) leads to noticeable
" delays and poor user experience.
set updatetime=300

" Always show the signcolumn, otherwise it would shift the text each time
" diagnostics appear/become resolved.
set signcolumn=yes

" Use tab for trigger completion with characters ahead and navigate.
" NOTE: There's always complete item selected by default, you may want to enable
" no select by `"suggest.noselect": true` in your configuration file.
" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
" other plugin before putting this into your config.
inoremap <silent><expr> <TAB>
    \ coc#pum#visible() ? coc#pum#next(1) :
    \ CheckBackspace() ? "\<Tab>" :
    \ coc#refresh()
inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"

" Make <CR> to accept selected completion item or notify coc.nvim to format
" <C-g>u breaks current undo, please make your own choice.
inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
                            \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"

function! CheckBackspace() abort
let col = col('.') - 1
return !col || getline('.')[col - 1]  =~# '\s'
endfunction

" Use <c-space> to trigger completion.
if has('nvim')
inoremap <silent><expr> <c-space> coc#refresh()
else
inoremap <silent><expr> <c-@> coc#refresh()
endif

" Use `[g` and `]g` to navigate diagnostics
" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
nmap <silent> [g <Plug>(coc-diagnostic-prev)
nmap <silent> ]g <Plug>(coc-diagnostic-next)

" GoTo code navigation.
nmap <silent> gd <Plug>(coc-definition)
nmap <silent> gy <Plug>(coc-type-definition)
nmap <silent> gi <Plug>(coc-implementation)
nmap <silent> gr <Plug>(coc-references)

" Use K to show documentation in preview window.
nnoremap <silent> K :call ShowDocumentation()<CR>

function! ShowDocumentation()
if CocAction('hasProvider', 'hover')
  call CocActionAsync('doHover')
else
  call feedkeys('K', 'in')
endif
endfunction

" Highlight the symbol and its references when holding the cursor.
autocmd CursorHold * silent call CocActionAsync('highlight')

" Symbol renaming.
nmap <leader>rn <Plug>(coc-rename)

" Formatting selected code.
xmap <leader>f  <Plug>(coc-format-selected)
nmap <leader>f  <Plug>(coc-format-selected)

augroup mygroup
autocmd!
" Setup formatexpr specified filetype(s).
autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
" Update signature help on jump placeholder.
autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
augroup end

" Applying codeAction to the selected region.
" Example: `<leader>aap` for current paragraph
xmap <leader>a  <Plug>(coc-codeaction-selected)
nmap <leader>a  <Plug>(coc-codeaction-selected)

" Remap keys for applying codeAction to the current buffer.
nmap <leader>ac  <Plug>(coc-codeaction)
" Apply AutoFix to problem on the current line.
nmap <leader>qf  <Plug>(coc-fix-current)

" Run the Code Lens action on the current line.
nmap <leader>cl  <Plug>(coc-codelens-action)

" Map function and class text objects
" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
xmap if <Plug>(coc-funcobj-i)
omap if <Plug>(coc-funcobj-i)
xmap af <Plug>(coc-funcobj-a)
omap af <Plug>(coc-funcobj-a)
xmap ic <Plug>(coc-classobj-i)
omap ic <Plug>(coc-classobj-i)
xmap ac <Plug>(coc-classobj-a)
omap ac <Plug>(coc-classobj-a)

" Remap <C-f> and <C-b> for scroll float windows/popups.
if has('nvim-0.4.0') || has('patch-8.2.0750')
nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
endif

" Use CTRL-S for selections ranges.
" Requires 'textDocument/selectionRange' support of language server.
nmap <silent> <C-s> <Plug>(coc-range-select)
xmap <silent> <C-s> <Plug>(coc-range-select)

" Add `:Format` command to format current buffer.
command! -nargs=0 Format :call CocActionAsync('format')

" Add `:Fold` command to fold current buffer.
command! -nargs=? Fold :call     CocAction('fold', <f-args>)

" Add `:OR` command for organize imports of the current buffer.
command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')

" Add (Neo)Vim's native statusline support.
" NOTE: Please see `:h coc-status` for integrations with external plugins that
" provide custom statusline: lightline.vim, vim-airline.
set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}

" Mappings for CoCList
" Show all diagnostics.
nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
" Manage extensions.
nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
" Show commands.
nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
" Find symbol of current document.
nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
" Search workspace symbols.
nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
" Do default action for next item.
nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
" Do default action for previous item.
nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
" Resume latest coc list.
nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>

Start (neo)vim with command: vim -u mini.vim
Trigger autocompletion with C-space
Autocomplete with any of the options

Screenshots (optional)

Screenshot 2022-09-08 at 16 26 08

Screenshot 2022-09-08 at 16 26 19

neoclide / coc.nvim