diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11cee770713..b45529e24b0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 ## Version 25.03.xx
 Fixes:
 - [events] Fix sum chart tooltip displaying the raw floating-point value instead of a rounded number
+- [events] Fixed event descriptions (and custom names / count-sum-dur labels) not showing on the Events page for events whose key contains special characters (`.`, `$`, `\`, `&`, `<`, `>`, `"`, `'`)
+
+Enterprise Fixes:
+- [data-manager] Fixed editing an event whose key contains `&` creating undeletable duplicate rows in the events table
 
 Security Fixes:
 - [compliance-hub] The consents table now returns a fixed set of fields; a projection supplied on the request is no longer used to widen the response beyond the consent columns
diff --git a/frontend/express/public/core/events/javascripts/countly.details.models.js b/frontend/express/public/core/events/javascripts/countly.details.models.js
index 6122e069580..7c9e83b9a20 100644
--- a/frontend/express/public/core/events/javascripts/countly.details.models.js
+++ b/frontend/express/public/core/events/javascripts/countly.details.models.js
@@ -231,7 +231,8 @@
             return str.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/<=/g, "&le;").replace(/>=/g, "&ge;");
         },
         getEventLongName: function(eventKey, eventMap) {
-            var mapKey = eventKey.replace(/\\/g, "\\\\").replace(/\$/g, "\\u0024").replace(/\./g, "\\u002e");
+            //events.map is keyed by the raw event key, exactly as it appears in events.list, so do not escape it here
+            var mapKey = eventKey;
             if (eventMap && eventMap[mapKey] && eventMap[mapKey].name) {
                 return eventMap[mapKey].name;
             }
@@ -244,7 +245,8 @@
             var allEvents = context.state.allEventsData;
             var groupData = context.state.groupData.displayMap;
             var eventMap = allEvents.map;
-            var mapKey = context.state.selectedEventName.replace(/\\/g, "\\\\").replace(/\$/g, "\\u0024").replace(/\./g, '\\u002e');
+            //events.map is keyed by the raw event key, exactly as it appears in events.list, so do not escape it here
+            var mapKey = context.state.selectedEventName;
             var countString = (mapKey.startsWith('[CLY]_group') && groupData.c) ? groupData.c : (eventMap && eventMap[mapKey] && eventMap[mapKey].count) ? eventMap[mapKey].count : jQuery.i18n.map["events.table.count"];
             var sumString = (mapKey.startsWith('[CLY]_group') && groupData.s) ? groupData.s : (eventMap && eventMap[mapKey] && eventMap[mapKey].sum) ? eventMap[mapKey].sum : jQuery.i18n.map["events.table.sum"];
             var durString = (mapKey.startsWith('[CLY]_group') && groupData.d) ? groupData.d : (eventMap && eventMap[mapKey] && eventMap[mapKey].dur) ? eventMap[mapKey].dur : jQuery.i18n.map["events.table.dur"];
@@ -893,9 +895,7 @@
                 return countlyAllEvents.service.fetchAllEventsData(context, period)
                     .then(function(res) {
                         if (res) {
-                            if (Array.isArray(res.list)) {
-                                res.list = res.list.map(eventName => countlyCommon.unescapeHtml(eventName));
-                            }
+                            // setAllEventsData decodes res.list and res.map keys in place
                             context.commit("setAllEventsData", res);
                             var is_group = false;
                             if (context.state.selectedEventName && context.state.selectedEventName.startsWith('[CLY]_group')) {
@@ -1106,6 +1106,29 @@
 
         var allEventsMutations = {
             setAllEventsData: function(state, value) {
+                // The API HTML-escapes every key and value on the way out (common.returnOutput),
+                // but the rest of this store works with raw event keys - selectedEventName is
+                // taken from `list`. Normalise `list` and the `map` keys together here, the one
+                // point both fetch paths commit through, so lookups like map[selectedEventName]
+                // don't silently miss for keys containing & < > " '. Keys without those chars
+                // (dots, dashes) were unaffected, which is why only some events lost their
+                // description on the Events page.
+                if (value && Array.isArray(value.list)) {
+                    value.list = value.list.map(function(eventName) {
+                        return countlyCommon.unescapeHtml(eventName);
+                    });
+                }
+                if (value && value.map && typeof value.map === "object") {
+                    //null prototype: event keys are arbitrary strings, and assigning a
+                    //"__proto__" key on a plain object reparents the map instead of adding
+                    //an own property, which would let unrelated key lookups resolve through
+                    //the assigned value
+                    var decodedMap = Object.create(null);
+                    Object.keys(value.map).forEach(function(eventKey) {
+                        decodedMap[countlyCommon.unescapeHtml(eventKey)] = value.map[eventKey];
+                    });
+                    value.map = decodedMap;
+                }
                 state.allEventsData = value;
             },
             setAllEventsList: function(state, value) {
diff --git a/plugins/data-manager/frontend/public/javascripts/countly.views.js b/plugins/data-manager/frontend/public/javascripts/countly.views.js
index c752e7f9e3b..e08ef2ee13a 100644
--- a/plugins/data-manager/frontend/public/javascripts/countly.views.js
+++ b/plugins/data-manager/frontend/public/javascripts/countly.views.js
@@ -700,7 +700,9 @@
                 var isVisible = command === 'visible';
                 var events = [];
                 rows.forEach(function(row) {
-                    events.push(row.key);
+                    // row.key is still API-escaped; change_visibility writes events.map[key]
+                    // directly, so submitting it raw would create a ghost map entry
+                    events.push(countlyCommon.unescapeHtml(row.key));
                 });
                 this.$store.dispatch('countlyDataManager/changeVisibility', { events: events, isVisible: isVisible }).then(function() {
                     countlyEvent.refreshEvents();
@@ -1338,8 +1340,22 @@
             },
             handleEdit: function() {
                 var event = JSON.parse(JSON.stringify(this.event));
-                event.segments = this.segments;
+                event.segments = JSON.parse(JSON.stringify(this.segments));
                 event.isEditMode = true;
+                // The store holds values exactly as the API returned them, and common.returnOutput
+                // HTML-escapes every string on the way out. The events table decodes these before
+                // opening the same drawer (see the 'dm-open-edit-event-drawer' handler) - do the
+                // same here, otherwise a key like "a & b" is submitted back as "a &amp; b" and
+                // forks a second drill_meta doc / events.map entry that shows up as a ghost row.
+                event.key = countlyCommon.unescapeHtml(event.key);
+                event.e = countlyCommon.unescapeHtml(event.e);
+                event.name = countlyCommon.unescapeHtml(event.name);
+                event.description = countlyCommon.unescapeHtml(event.description);
+                event.categoryName = countlyCommon.unescapeHtml(event.categoryName);
+                event.segments = event.segments.map(function(seg) {
+                    seg.name = countlyCommon.unescapeHtml(seg.name);
+                    return seg;
+                });
                 this.openDrawer("events", event);
             },
             handleEditSegment: function(seg) {