How to select a suggestion in helix

[tcoopman]

In helix when I type defmodule I get autocomplete suggestions with the correct module name based on the file name, but I don't have any way of selecting this suggestion.
I know that this is something that used to work in elixir-ls and I can't find any issue right away in helix, so I'm not sure where the fault is....

I do see this log appearing at the time I try to do the autocomplete:

2024-02-24T11:03:32.018 helix_lsp::util [WARN] LSP position Position { line: 1, character: 0 } out of range assuming EOF
2024-02-24T11:03:32.443 helix_lsp::util [WARN] LSP position Position { line: 1, character: 0 } out of range assuming EOF

Is there anything I can do to figure out why this fails?

Other completions do work correctly.