The 'S' key of the vim-surround plugin is not working.

[vhxnif]

It seems that the S key of the vim-surround plugin is not working and is still mapped to vim's own S key behavior.

Version: 2.21.0

.ideavimrc

" wiki https://github.com/JetBrains/ideavim/wiki
" Map leader to space ---------------------
let mapleader=" "
" Plugins  --------------------------------
set argtextobj
let g:argtextobj_pairs="[:],(:),<:>,[:],':',\":\",`:`"
set surround
set NERDTree
set easymotion
set multiple-cursors
set quickscope
" sneak
" Type s and two chars to start sneaking in forward direction
" Type S and two chars to start sneaking in backward direction
" Type ; or , to proceed with sneaking just as if you were using f or t commands
" Plug 'justinmk/vim-sneak'
set highlightedyank
let g:highlightedyank_highlight_color = "rgba(160, 160, 160, 155)"
" Common settings -------------------------
set keep-english-in-normal
set showmode
set number
set cursorline
set hlsearch
set incsearch
set visualbell
set smartcase
" Idea specific settings ------------------
set ideajoin
set ideastatusicon=gray
set idearefactormode=keep
set clipboard+=ideaput
nmap <Up> <Nop>
nmap <Down> <Nop>
nmap <Left> <Nop>
nmap <Right> <Nop>
" Plug -----------------------------
" map <leader>m <Plug>:NERDTreeToggle<CR>
" map <leader>n <Plug>:NERDTreeFocus<CR>
" multiple cursors
" Remap multiple-cursors shortcuts to match terryma/vim-multiple-cursors
nmap <C-n> <Plug>NextWholeOccurrence
xmap <C-n> <Plug>NextWholeOccurrence
nmap g<C-n> <Plug>NextOccurrence
xmap g<C-n> <Plug>NextOccurrence
xmap <C-x> <Plug>SkipOccurrence
xmap <C-p> <Plug>RemoveOccurrence
" Note that the default <A-n> and g<A-n> shortcuts don't work on Mac due to dead keys.
" <A-n> is used to enter accented text e.g. ñ
" Feel free to pick your own mappings that are not affected. I like to use <leader>
nmap <leader><C-n> <Plug>AllWholeOccurrences
xmap <leader><C-n> <Plug>AllWholeOccurrences
nmap <leader>g<C-n> <Plug>AllOccurrences
xmap <leader>g<C-n> <Plug>AllOccurrences

" helix mapping like------------------------------------
" movement
nmap <C-i> <Action>(Forward)
nmap <C-o> <Action>(Back)
" goto mode -----------------------------------------
nmap gd <Action>(GotoDeclaration)
nmap gi <Action>(GotoImplementation)
map gR <Action>(FindUsages)
map gr <Action>(ShowUsages)
nmap gy <Action>(GotoSuperMethod)
" previous/next tab
map gp <Action>(PreviousTab)
map gn <Action>(NextTab)
map gs ^
map gl $
map ge G
" NOTE:
" RecentChangedFiles displays list of edited files. To show all, press C-e
" or you can simply show a list of all files
" nmap <leader>B <Action>(GotoFile)
map gw <Plug>(easymotion-bd-w)
"unimpaired https://github.com/tpope/vim-unimpaired
nmap [d <Action>(GotoNextError)
nmap ]d <Action>(GotoPreviousError)
nmap [f <Action>(MethodUp)
nmap ]f <Action>(MethodDown)
nmap [g <Action>(VcsShowNextChangeMarker)
nmap ]g <Action>(VcsShowPrevChangeMarker)
map [p <Action>(EditorForwardParagraph)
map ]p <Action>(EditorBackwardParagraph)
map [P <Action>(EditorForwardParagraphWithSelection)
map ]P <Action>(EditorBackwardParagraphWithSelection)
" space mode -------------------------------
map <leader>r <Action>(RenameElement)
map <leader>a <Action>(ShowIntentionActions)
map <leader>S <Action>(GotoSymbol)
map <leader>s <Action>(FileStructurePopup)
" OR alternatively
" :nmap <leader>s <Action>(GotoSymbol)
map <leader>F <Action>(FindInPath)
map <leader>f <Action>(GotoFile)
map <leader>b <Action>(RecentFiles)
map <leader>? <Action>(SearchEverywhere)
map <leader>k <Action>(QuickJavaDoc)
map <leader>w <c-w>
map <leader>h <Action>(CopyReferencePopupGroup)
map <leader>e <Action>(Refactorings.QuickListPopupAction)
" helix match ----------------------------------
" mm Goto matching bracket
nmap mm %
" ms Surround add
nmap ms ysiw
" mr Surround replace
nmap mr cs
" md Surround delete
nmap md ds
" ma Select around object
nmap ma va
" mi Select inside object
nmap mi vi
" helix other ----------------------------------
nmap <c-c> <Action>(CommentByLineComment)
vmap s <Action>(Find)
" Alt+s - adds a caret at the end of each selected line
map <s-c> <Action>(EditorCloneCaretBelow)
" Move line up / down
map <a-up> <Action>(MoveLineUp)
map <a-k> <a-up>
map <a-down> <Action>(MoveLineDown)
map <a-j> <a-down>
" Duplicate line
map <a-s-down> <Action>(EditorDuplicate)
map <a-s-j> <a-s-down>
" Extend selection / shrink selection
map <a-o> <Action>(EditorSelectWord)
map <a-i> <Action>(EditorUnSelectWord)
" make x a line selection (READ WARNING below)
nmap x V
vmap x j
" Mappings Idea Action --------------------------------
map <leader>= <Action>(ReformatCode)
map <leader><CR> <Action>(EditorStartNewLine)
map <leader>o <Action>(OptimizeImports)