diff --git a/netx_api/topology_classify_slices.py b/netx_api/topology_classify_slices.py
index 0b0a63b..593006e 100644
--- a/netx_api/topology_classify_slices.py
+++ b/netx_api/topology_classify_slices.py
@@ -297,17 +297,47 @@ def search_fabric_nodes_with_views(
     page: int = 1,
     page_size: int = 50,
 ) -> dict[str, Any]:
+    """Search fabric NEs and resolve which canvases they appear on.
+
+    Membership views (TopoViewNode) come first. UME synthetic canvases usually have
+    no membership rows — fall back to region_folder_id → primary canvas, and to the
+    world map when world_x/y are set.
+    """
+    from sqlalchemy import or_
+
+    from .models import UmeInventoryNE
+    from .topology_region_canvas import primary_canvas_view
     from .topology_service import _node_out
+    from .ume_topology_world import get_world_flat_view, is_world_flat_visible
 
     q = db.query(TopoFabricNode)
     kw = str(keyword or "").strip()
     if kw:
         like = f"%{kw}%"
-        q = q.filter(
-            (TopoFabricNode.name.ilike(like))
-            | (TopoFabricNode.ip.ilike(like))
-            | (TopoFabricNode.vendor.ilike(like))
-        )
+        inv_ids = [
+            str(r[0])
+            for r in db.query(UmeInventoryNE.ne_id)
+            .filter(
+                or_(
+                    UmeInventoryNE.user_label.ilike(like),
+                    UmeInventoryNE.ne_name.ilike(like),
+                    UmeInventoryNE.host_name.ilike(like),
+                    UmeInventoryNE.ip_address.ilike(like),
+                )
+            )
+            .limit(500)
+            .all()
+            if str(r[0] or "").strip()
+        ]
+        clauses = [
+            TopoFabricNode.name.ilike(like),
+            TopoFabricNode.ip.ilike(like),
+            TopoFabricNode.vendor.ilike(like),
+            TopoFabricNode.ume_ne_id.ilike(like),
+        ]
+        if inv_ids:
+            clauses.append(TopoFabricNode.ume_ne_id.in_(inv_ids))
+        q = q.filter(or_(*clauses))
     total = q.count()
     rows = (
         q.order_by(TopoFabricNode.name.asc())
@@ -317,6 +347,23 @@ def search_fabric_nodes_with_views(
     )
     node_ids = [n.id for n in rows]
     placements: dict[str, list[dict[str, Any]]] = {nid: [] for nid in node_ids}
+    seen: dict[str, set[str]] = {nid: set() for nid in node_ids}
+
+    def _add_view(nid: str, view: TopoView, folder: TopoFolder | None) -> None:
+        vid = str(view.id or "").strip()
+        if not vid or vid in seen.get(nid, set()):
+            return
+        seen.setdefault(nid, set()).add(vid)
+        placements.setdefault(nid, []).append(
+            {
+                "view_id": view.id,
+                "view_name": view.name,
+                "folder_id": view.folder_id or "",
+                "folder_name": (folder.name if folder else "") or "",
+                "kind": view.kind or "custom",
+            }
+        )
+
     if node_ids:
         vnodes = (
             db.query(TopoViewNode, TopoView, TopoFolder)
@@ -326,15 +373,31 @@ def search_fabric_nodes_with_views(
             .all()
         )
         for vn, view, folder in vnodes:
-            placements.setdefault(vn.fabric_node_id, []).append(
-                {
-                    "view_id": view.id,
-                    "view_name": view.name,
-                    "folder_id": view.folder_id or "",
-                    "folder_name": (folder.name if folder else "") or "",
-                    "kind": view.kind or "custom",
-                }
-            )
+            _add_view(vn.fabric_node_id, view, folder)
+
+        folder_ids = {
+            str(n.region_folder_id or "").strip()
+            for n in rows
+            if str(n.region_folder_id or "").strip()
+        }
+        folders_by_id: dict[str, TopoFolder] = {}
+        if folder_ids:
+            for f in db.query(TopoFolder).filter(TopoFolder.id.in_(list(folder_ids))).all():
+                folders_by_id[str(f.id)] = f
+
+        flat = get_world_flat_view(db)
+        flat_ok = flat is not None and is_world_flat_visible(flat)
+        flat_folder = db.get(TopoFolder, flat.folder_id) if flat_ok and flat and flat.folder_id else None
+
+        for n in rows:
+            rid = str(n.region_folder_id or "").strip()
+            if rid:
+                view = primary_canvas_view(db, rid)
+                if view is not None:
+                    _add_view(n.id, view, folders_by_id.get(rid))
+            if flat_ok and flat is not None and n.world_x is not None and n.world_y is not None:
+                _add_view(n.id, flat, flat_folder)
+
     items = []
     for n in rows:
         d = _node_out(n).model_dump()
diff --git a/web/src/index.css b/web/src/index.css
index eae77a7..3b9f012 100644
--- a/web/src/index.css
+++ b/web/src/index.css
@@ -4494,10 +4494,11 @@ pre {
   max-height: min(360px, 50vh);
   overflow: auto;
   padding: 4px;
-  border: 1px solid #b8c4d2;
+  border: 1px solid rgba(148, 163, 184, 0.28);
   border-radius: 8px;
-  background: #fff;
-  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.12);
+  background: #0b1220;
+  color: #e2e8f0;
+  box-shadow: 0 8px 24px rgba(2, 8, 23, 0.55);
 }
 
 .topo-tree-search__item {
@@ -4510,7 +4511,7 @@ pre {
 
 .topo-tree-search__item + .topo-tree-search__item {
   margin-top: 2px;
-  border-top: 1px solid #eef2f6;
+  border-top: 1px solid rgba(148, 163, 184, 0.16);
   padding-top: 4px;
 }
 
@@ -4530,14 +4531,14 @@ pre {
 }
 
 .topo-tree-search__ne:hover {
-  background: #f1f5f9;
+  background: rgba(148, 163, 184, 0.12);
 }
 
 .topo-tree-search__name {
   grid-column: 1;
   font-size: 12px;
   font-weight: 600;
-  color: var(--nm-ink, #0f172a);
+  color: #e2e8f0;
   overflow: hidden;
   text-overflow: ellipsis;
   white-space: nowrap;
@@ -4566,11 +4567,11 @@ pre {
 .topo-tree-search__view {
   max-width: 100%;
   padding: 2px 8px;
-  border: 1px solid #d0dae6;
+  border: 1px solid rgba(148, 163, 184, 0.28);
   border-radius: 999px;
-  background: #f8fafc;
+  background: rgba(30, 41, 59, 0.9);
   font-size: 11px;
-  color: var(--nm-brand, #1d4ed8);
+  color: #93c5fd;
   cursor: pointer;
   overflow: hidden;
   text-overflow: ellipsis;
@@ -4578,8 +4579,8 @@ pre {
 }
 
 .topo-tree-search__view:hover {
-  background: #e8eef8;
-  border-color: #9eb6d8;
+  background: rgba(51, 65, 85, 0.95);
+  border-color: rgba(96, 165, 250, 0.45);
 }
 
 .topo-tree-search__hint {
@@ -5561,12 +5562,29 @@ pre {
   flex-direction: column;
   gap: 2px;
   padding: 2px 0;
+  /* Allow deep indent + actions to extend; parent scroll shows a horizontal bar. */
+  width: max-content;
+  min-width: 100%;
+  max-width: none;
+  box-sizing: border-box;
+}
+
+.topo-region-list-scroll {
+  flex: 1 1 auto;
+  min-height: 0;
+  min-width: 0;
+  overflow-x: auto;
+  overflow-y: auto;
+  border: 1px solid rgba(148, 163, 184, 0.22);
+  border-radius: 6px;
+  background: rgba(2, 8, 23, 0.45);
+  padding: 2px 0;
 }
 
 .topo-region-list__block {
   margin: 0;
   width: auto;
-  max-width: 100%;
+  max-width: none;
   min-width: 0;
   padding: 2px 0 4px;
   box-sizing: border-box;
@@ -5585,6 +5603,8 @@ pre {
   overflow: visible;
   gap: 2px;
   padding-right: 2px;
+  width: max-content;
+  min-width: 100%;
   transition: background 0.12s ease;
 }
 
@@ -5691,6 +5711,7 @@ pre {
 .topo-region-list .topo-map-list__actions {
   opacity: 0;
   pointer-events: none;
+  flex: 0 0 auto;
   border-left: 0;
   gap: 4px;
   padding-right: 4px;
@@ -5730,10 +5751,10 @@ pre {
 }
 
 .topo-region-list .topo-map-list__title {
-  min-width: 0;
-  flex: 1 1 auto;
-  overflow: hidden;
-  text-overflow: ellipsis;
+  min-width: max-content;
+  flex: 0 1 auto;
+  overflow: visible;
+  text-overflow: clip;
   white-space: nowrap;
   font-size: 13px;
   font-weight: 650;
diff --git a/web/src/pages/TopologyPage.tsx b/web/src/pages/TopologyPage.tsx
index c1ae5e4..aaa4851 100644
--- a/web/src/pages/TopologyPage.tsx
+++ b/web/src/pages/TopologyPage.tsx
@@ -276,11 +276,23 @@ function mergeFlatWorldGraph(
   next: TopologyViewGraph,
   opts?: { centerX?: number; centerY?: number },
 ): TopologyViewGraph {
-  if (!prev?.nodes?.length) return next;
+  const scatter = next.scatter?.length ? next.scatter : prev?.scatter;
+  if (!prev?.nodes?.length) {
+    return scatter?.length && !next.scatter?.length ? { ...next, scatter } : next;
+  }
+  // Overview / zoom-out payloads have empty RF nodes — keep (or refresh) scatter,
+  // drop heavy tiles when the server intentionally cleared them.
   if (!next?.nodes?.length) {
     return {
       ...prev,
+      view: next.view || prev.view,
+      nodes: [],
+      edges: [],
+      scatter: scatter || [],
       world_transform: next.world_transform ?? prev.world_transform,
+      truncated: Boolean(next.truncated || prev.truncated),
+      truncate_reason: next.truncate_reason || prev.truncate_reason || "",
+      outside_peers: next.outside_peers?.length ? next.outside_peers : prev.outside_peers,
     };
   }
 
@@ -320,7 +332,7 @@ function mergeFlatWorldGraph(
     nodes,
     edges,
     world_transform: next.world_transform ?? prev.world_transform,
-    scatter: next.scatter?.length ? next.scatter : prev.scatter,
+    scatter: scatter || [],
     truncated: Boolean(prev.truncated || next.truncated),
     truncate_reason: next.truncate_reason || prev.truncate_reason || "",
     outside_peers: next.outside_peers?.length ? next.outside_peers : prev.outside_peers,
@@ -1428,12 +1440,14 @@ export function TopologyPage() {
           const cx = bounds ? bounds.x + bounds.width / 2 : 0;
           const cy = bounds ? bounds.y + bounds.height / 2 : 0;
           commit(g, cx, cy);
-        } else if (prev.nodes.length > 0 && zoom < 0.04) {
+        } else if (prev.nodes.length > 0) {
+          // Always shed RF tiles when leaving close-up so scatter is the sole layer.
           commit(
             {
               ...prev,
               nodes: [],
               edges: [],
+              scatter: prev.scatter,
               world_transform: prev.world_transform
                 ? { ...prev.world_transform, lod: "overview" }
                 : prev.world_transform,
@@ -4156,7 +4170,7 @@ export function TopologyPage() {
                                 </span>
                               )}
                             </button>
-                            {views.length > 1 ? (
+                            {views.length > 0 ? (
                               <div className="topo-tree-search__views">
                                 {views.map((v) => (
                                   <button
@@ -4166,7 +4180,9 @@ export function TopologyPage() {
                                     onClick={() => jumpToTreeSearchHit(hit, v)}
                                     title={`${v.folder_name ? `${v.folder_name} / ` : ""}${v.view_name}`}
                                   >
-                                    {v.view_name || v.view_id.slice(0, 8)}
+                                    {v.folder_name
+                                      ? `${v.folder_name} / ${v.view_name || v.view_id.slice(0, 8)}`
+                                      : v.view_name || v.view_id.slice(0, 8)}
                                   </button>
                                 ))}
                               </div>
@@ -4214,9 +4230,11 @@ export function TopologyPage() {
               ) : regions.length === 0 ? (
                 <p className="panel__hint">{t("topology.emptyMaps")}</p>
               ) : (
-                <ul className="topo-map-list topo-region-list">
-                  {regions.map((region) => renderWorldNavFolder(region, 0))}
-                </ul>
+                <div className="topo-region-list-scroll">
+                  <ul className="topo-map-list topo-region-list">
+                    {regions.map((region) => renderWorldNavFolder(region, 0))}
+                  </ul>
+                </div>
               )}
               {mapId && outsidePeers.length > 0 && (
                 <div className="topo-outside-peers">