Duplicated Erlang binaries resulting in `:badfile` error

[wulymammoth]

I'm unsure why, but whenever I use this particular plugin with Elixir, I always end up with several issues:

1. it continues to create a .elixir_ls directory in my project even though"elixirLS.dialyzerEnabled": false is set in my coc-settings. According to the README this is only needed for Dialyzer
2. when I start my Phoenix application or start the tests, I sometimes encounter duplicated binaries as if multiple versions of the project had been built and suffixed, which obviously confuses the runtime -- take notice to the 2 suffix right before the .beam file extension

13:32:55.608 [error] Loading of ~/foo/_build/dev/lib/thinger_majigger/ebin/Elixir.Foo.LiveHelpers 2.beam failed: :badfile

I currently just $ rm -rf _build/dev and rebuild from scratch which kinda sucks since the project must be rebuilt again

If anyone has encountered a way to address/fix this, I'd love to know. Thanks