There is a deployment warning I am seeing Error! Failed to load module 'elixir' because it requires a more recent Erlang/OTP version or its .beam file was corrupted.
The deployment none-the-less does start up and run fine.
When prompted about this Render support did not have much to add.
The other issue you notice about Erlang crashing, we have received a small number of reports (4 in total). We have an open ticket to investigate it, but from what we see, it is not impacting a service's ability to run. The only thing you see is those suspect logs when your service starts. Currently, this ticket has a low priority, so I don't have an ETA on when it will be reviewed.

There is a deployment warning I am seeing
Error! Failed to load module 'elixir' because it requires a more recent Erlang/OTP version or its .beam file was corrupted.The deployment none-the-less does start up and run fine.
When prompted about this Render support did not have much to add.