Snippet expansion in clangd headers

[IC0hO]

I am using this LSP with vim-vsnip, and the LSP server is using clangd. I encountered a problem that is the same as the one described in vim-vsnip. The author pointed out that it may be a problem with LSP completion. Is that the case?

[arashrun]

I use ultisnips, and there has the same problem

I just change the include snippets in vim-snippets that work for me

// snippets befoer:
#include <iostream>

// snippets changed after:
#include <iostream