diff --git a/evennia/server/portal/discord.py b/evennia/server/portal/discord.py
index 0e03ac6481..12f0cbb076 100644
--- a/evennia/server/portal/discord.py
+++ b/evennia/server/portal/discord.py
@@ -534,10 +534,17 @@ class DiscordClient(WebSocketClientProtocol, _BASE_SESSION_CLASS):
             if "guild_id" in data:
                 # message received to a Discord channel
                 keywords["type"] = "channel"
-                author = data["member"]["nick"] or data["author"]["username"]
-                author_id = data["author"]["id"]
+                member = data.get("member", {}) or {}
+                author_info = data.get("author", {}) or {}
+                # Prefer guild nickname; fall back to global_name, then username
+                author = (
+                    member.get("nick")
+                    or author_info.get("global_name")
+                    or author_info.get("username")
+                )
+                author_id = author_info.get("id") or data["author"]["id"]
                 keywords["sender"] = (author_id, author)
-                keywords["guild_id"] = data["guild_id"]
+                keywords["guild_id"] = data.get("guild_id")
 
             else:
                 # message sent directly to the bot account via DM
diff --git a/evennia/web/static/webclient/js/plugins/multimedia.js b/evennia/web/static/webclient/js/plugins/multimedia.js
index f8f6ab10d3..d0c9c6e796 100644
--- a/evennia/web/static/webclient/js/plugins/multimedia.js
+++ b/evennia/web/static/webclient/js/plugins/multimedia.js
@@ -27,7 +27,13 @@ let multimedia_plugin = (function () {
 
         var mwins = window.plugins["goldenlayout"].routeMessage(args, kwargs);
         mwins.forEach( function (mwin) {
-            mwin.append("<img src='"+ args[0] +"'/>");
+            var html = "<img src='"+ args[0] +"'/>";
+            var method = mwin.attr("updateMethod");
+            if (method === "replace") {
+                mwin.html(html);
+            } else {
+                mwin.append(html);
+            }
             mwin.scrollTop(mwin[0].scrollHeight);
         });
     }
@@ -40,9 +46,15 @@ let multimedia_plugin = (function () {
         // create an HTML5 audio control (only .mp3 is fully compatible with all major browsers)
         var mwins = window.plugins["goldenlayout"].routeMessage(args, kwargs);
         mwins.forEach( function (mwin) {
-            mwin.append("<audio controls='' autoplay='' style='height:17px;width:175px'>" +
+            var html = "<audio controls='' autoplay='' style='height:17px;width:175px'>" +
                         "<source src='"+ args[0] +"'/>" +
-                        "</audio>");
+                        "</audio>";
+            var method = mwin.attr("updateMethod");
+            if (method === "replace") {
+                mwin.html(html);
+            } else {
+                mwin.append(html);
+            }
             mwin.scrollTop(mwin[0].scrollHeight);
         });
     }
@@ -55,9 +67,15 @@ let multimedia_plugin = (function () {
         // create an HTML5 video element (only h264 .mp4 is compatible with all major browsers)
         var mwins = window.plugins["goldenlayout"].routeMessage(args, kwargs);
         mwins.forEach( function (mwin) {
-            mwin.append("<video controls='' autoplay=''>" +
+            var html = "<video controls='' autoplay=''>" +
                         "<source src='"+ args[0] +"'/>" +
-                        "</video>");
+                        "</video>";
+            var method = mwin.attr("updateMethod");
+            if (method === "replace") {
+                mwin.html(html);
+            } else {
+                mwin.append(html);
+            }
             mwin.scrollTop(mwin[0].scrollHeight);
         });
     }