UltiSnips doesn't work, luasnip does

[sjomae]

UltiSnips works on my system, except for scnvim / vim-supercollider-snippets. I tried luasnip, which works for scnvim / vim-supercollider-snippets. The files seems to be available after SCNvimGenerateAssets in .cache.

$ ls .cache/nvim/scnvim
classes.vim  supercollider.snippets  tags

No related info in the healthchecks of nvim

snippet = {
      engine = {
        --name = 'luasnip',
        name = 'ultisnips',
        options = {
          descriptions = true,
        },
      },
    },

let g:scnvim_snippet_format = "ultisnips"
let g:UltiSnipsSnippetDirectories = ['UltiSnips', 'scnvim-data']

Running :UltiSnipsEdit! lists ~/.local/share/nvim/plugged/nvim-supercollider-snippets/UltiSnips/supercollider.snippets

sources = cmp.config.sources({
      { name = 'cmp_r' },
      { name = 'nvim_lsp' },
      { name = 'tags' }, -- needed for scnvim
      -- { name = 'vsnip' }, -- For vsnip users.
      -- { name = 'luasnip' }, -- For luasnip users.
      { name = 'ultisnips' }, -- For ultisnips users.
      -- { name = 'snippy' }, -- For snippy users.
    },