Don't use createRef for patched players.

src/patches/ha-web-rtc-player.ts

@@ -9,43 +9,54 @@
 // available as compilation time.
 // ====================================================================
 
-import { Ref, createRef, ref } from 'lit/directives/ref.js';
 import { TemplateResult, html } from 'lit';
 import { customElement } from 'lit/decorators.js';
+import { query } from 'lit/decorators/query.js';
+
 import { dispatchErrorMessageEvent, dispatchMediaShowEvent } from '../common.js';
 
 customElements.whenDefined('ha-web-rtc-player').then(() => {
   @customElement('frigate-card-ha-web-rtc-player')
   // eslint-disable-next-line @typescript-eslint/no-unused-vars
   class FrigateCardHaWebRtcPlayer extends customElements.get('ha-web-rtc-player') {
-    protected _videoRef: Ref<HTMLVideoElement> = createRef();
+    // Due to an obscure behavior when this card is casted, this element needs
+    // to use query rather than the ref directive to find the player.
+    @query('#remote-stream')
+    protected _video: HTMLVideoElement;
 
     /**
      * Play the video.
      */
     public play(): void {
-      this._videoRef.value?.play();
+      this._video?.play();
     }
 
     /**
      * Pause the video.
      */
     public pause(): void {
-      this._videoRef.value?.pause();
+      this._video?.pause();
     }
 
     /**
      * Mute the video.
      */
     public mute(): void {
-      this.muted = true;
+      // The muted property is only for the initial muted state. Must explicitly
+      // set the muted on the video player to make the change dynamic.
+      if (this._video) {
+        this._video.muted = true;
+      }
     }
 
     /**
      * Unmute the video.
      */
     public unmute(): void {
-      this.muted = false;
+      // See note in mute().
+      if (this._video) {
+        this._video.muted = false;
+      }
     }
 
     // =====================================================================================
@@ -56,13 +67,10 @@ customElements.whenDefined('ha-web-rtc-player').then(() => {
       if (this._error) {
         // Use native Frigate card error handling, and attach the entityid to
         // clarify which camera the error refers to.
-        return dispatchErrorMessageEvent(
-          this,
-          `${this._error} (${this.entityid})`);
+        return dispatchErrorMessageEvent(this, `${this._error} (${this.entityid})`);
       }
       return html`
         <video
-          ${ref(this._videoRef)}
           id="remote-stream"
           ?autoplay=${this.autoPlay}
           .muted=${this.muted}