[erlang-questions] Erlang closed the connection

[pablo platt]

Hi,

I have several docker containers running Erlang release.
The host and the containers use Ubuntu 18.04.
With OTP 20 I had no issues.
Since I upgraded to OTP 21 I'm getting an error:
run_erl[97]: Erlang closed the connection.

After this error, the Erlang node isn't running. I don't see a crash dump
or anything in the release log folder.
What can cause this error and how can I debug it?

Thanks
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