No estoy seguro de si esto es relevante, pero también veo un montón de avisos de deprecación en los registros de la consola. Uno de ellos enlaza a un tema reciente:
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DEPRECATION: Passing the `@class` argument to <LinkTo> is deprecated. Instead, please pass the attribute directly, i.e. <LinkTo class={{...}} /> instead of <LinkTo @class={{...}} /> or {{link-to class=...}}. [deprecation id: ember.built-in-components.legacy-attribute-arguments] See https://deprecations.emberjs.com/v3.x#toc_ember-built-in-components-legacy-attribute-arguments for more details.
deprecate-shim.js:33 DEPRECATION: Passing the `@input` argument to <Input> is deprecated. [deprecation id: ember.built-in-components.legacy-arguments] See https://deprecations.emberjs.com/v3.x#toc_ember-built-in-components-legacy-arguments for more details.
DEPRECATION: Passing the `@disabled` argument to <Input> is deprecated. [deprecation id: ember.built-in-components.legacy-arguments] See https://deprecations.emberjs.com/v3.x#toc_ember-built-in-components-legacy-arguments for more details.
deprecate-shim.js:33 DEPRECATION: Passing the `@click` argument to <Input> is deprecated. [deprecation id: ember.built-in-components.legacy-arguments] See https://deprecations.emberjs.com/v3.x#toc_ember-built-in-components-legacy-arguments for more details.
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DevTools failed to load source map: Could not load content for https://community.ankihub.net/stylesheets/discourse-automation_55126ef13900a26b9ac6533772dfb8aecb7acd6a.css.map?__ws=community.ankihub.net: HTTP error: status code 200, net::ERR_HTTP2_PROTOCOL_ERROR
[PLUGIN discourse-automation] Deprecation notice: Defining modals using a controller is deprecated. Use the component-based API instead. (modal: json-schema-editor) [deprecated since Discourse 3.1] [removal in Discourse 3.2] [deprecation id: discourse.modal-controllers] [info: https://meta.discourse.org/t/268057]