Zero-tier unable to save configuration

I am unable to add network id in zero tier configuration file. If I add it and save it reverts to
networks: [] api_auth_token: ''

My system

Add-on version: 0.11.0
You are running the latest version of this add-on.
System: Home Assistant OS 5.13 (armv7 / raspberrypi4)
Home Assistant Core: 2021.5.4
Home Assistant Supervisor: 2021.04.3

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