RabbitMQ: “All stable feature flags must be enabled after completing an upgrade.” – How to fix?

I have just installed RabbitMQ on a fresh Windows 11 installation and enabled the management plugin by running the command rabbitmq-plugins enable rabbitmq_management in the RabbitMq command prompt.

When I navigate to the RabbitMQ management website in my browser I see the following message:
All stable feature flags must be enabled after completing an upgrade.

What is the cause of this error message? And how do I fix the issue?

I’m using RabbitMQ version 3.13.3 with Erlang 27.0. I have not yet created any queues or users in RabbitMQ.

Edit: When I run the command rabbitmqctl list_feature_flags I get the message Error: {:badrpc, :nodedown}. So I can’t simply list and enable feature flags.

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