Default Dashboard Resets

I recently reconfigured my primary custom .yaml dashboard configuration to clean up the URL (i.e. remove reference to anything “lovelace”). My configuration now looks like this:

lovelace:
  mode: storage
  dashboards:
    dash-board:
      mode: yaml
      filename: dashboard.yaml
      title: Home
      icon: mdi:home-account
      show_in_sidebar: true
      require_admin: false

Ever since, some of my devices seem to reset the default dashboard every 1-2 days to the Overview which is marked as default even if I stay logged in and on WiFi and/or when the app has to switch to external access (Nabu Casa) and then back to internal.

I cannot seem to pinpoint what part of the configuration changes are causing this. Any ideas or is this just a bug I need to report?