Code autocomplete problem

Hi I’m using vs code and the forked Elixir-LS extension.

It gives me nice auto formatting on save and some warnings etc, but poor auto completing.

It only seems to work for module/functions not for variables.
For instance if have somevar which holds a struct (with type specs).
when I type somevar. it will error immediately after I press the .

[Error - 2:10:53 PM] Request textDocument/completion failed.
  Message: an exception was raised:
    ** (FunctionClauseError) no function clause matching in :elixir_aliases.do_concat/2
        (elixir) src/elixir_aliases.erl:130: :elixir_aliases.do_concat([{:somevar, [line: 35, column: 5], nil}, :Agent], "Elixir")
        (elixir) src/elixir_aliases.erl:118: :elixir_aliases.concat/1
        (elixir_sense) lib/elixir_sense/core/metadata_builder.ex:925: ElixirSense.Core.MetadataBuilder.pre/2
        (elixir) lib/macro.ex:290: anonymous fn/4 in Macro.do_traverse_args/4
        (elixir) lib/enum.ex:1440: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3
        (elixir) lib/enum.ex:1440: Enum."-map_reduce/3-lists^mapfoldl/2-0-"/3
        (elixir) lib/macro.ex:256: Macro.do_traverse/4
        (elixir) lib/macro.ex:271: Macro.do_traverse/4
  Code: -32000

Does’t really matter what I do, as soon as I have the . this error shows up.