diff --git a/desktop/src/features/agents/hooks/useCanViewAgentActivity.ts b/desktop/src/features/agents/hooks/useCanViewAgentActivity.ts
index a6bc220fd..33f0d2d48 100644
--- a/desktop/src/features/agents/hooks/useCanViewAgentActivity.ts
+++ b/desktop/src/features/agents/hooks/useCanViewAgentActivity.ts
@@ -38,6 +38,7 @@ export function useCanViewAgentActivity(
     relayOwnership: ownershipQuery.data,
     isManagedAgent,
     isOwnershipLoading: ownershipQuery.isLoading,
+    isOwnershipError: ownershipQuery.isError,
     isManagedLoading: isManagedAgent === undefined,
   });
 }
diff --git a/desktop/src/features/agents/lib/canViewAgentActivity.test.mjs b/desktop/src/features/agents/lib/canViewAgentActivity.test.mjs
index cfd3c8d87..5fad347de 100644
--- a/desktop/src/features/agents/lib/canViewAgentActivity.test.mjs
+++ b/desktop/src/features/agents/lib/canViewAgentActivity.test.mjs
@@ -12,6 +12,7 @@ test("resolveCanViewAgentActivity returns true when relay confirms ownership", (
     },
     isManagedAgent: false,
     isOwnershipLoading: false,
+    isOwnershipError: false,
     isManagedLoading: false,
   });
 
@@ -28,6 +29,7 @@ test("resolveCanViewAgentActivity returns false when relay denies ownership", ()
     },
     isManagedAgent: true,
     isOwnershipLoading: false,
+    isOwnershipError: false,
     isManagedLoading: false,
   });
 
@@ -40,6 +42,7 @@ test("resolveCanViewAgentActivity optimistically allows locally managed agents w
     relayOwnership: undefined,
     isManagedAgent: true,
     isOwnershipLoading: true,
+    isOwnershipError: false,
     isManagedLoading: false,
   });
 
@@ -52,9 +55,36 @@ test("resolveCanViewAgentActivity stays closed for non-managed agents while load
     relayOwnership: undefined,
     isManagedAgent: false,
     isOwnershipLoading: true,
+    isOwnershipError: false,
     isManagedLoading: false,
   });
 
   assert.equal(result.canView, false);
   assert.equal(result.isLoading, true);
 });
+
+test("resolveCanViewAgentActivity keeps locally managed agents visible when ownership lookup errors", () => {
+  const result = resolveCanViewAgentActivity({
+    relayOwnership: undefined,
+    isManagedAgent: true,
+    isOwnershipLoading: false,
+    isOwnershipError: true,
+    isManagedLoading: false,
+  });
+
+  assert.equal(result.canView, true);
+  assert.equal(result.isLoading, false);
+});
+
+test("resolveCanViewAgentActivity stays closed for non-managed agents when ownership lookup errors", () => {
+  const result = resolveCanViewAgentActivity({
+    relayOwnership: undefined,
+    isManagedAgent: false,
+    isOwnershipLoading: false,
+    isOwnershipError: true,
+    isManagedLoading: false,
+  });
+
+  assert.equal(result.canView, false);
+  assert.equal(result.isLoading, false);
+});
diff --git a/desktop/src/features/agents/lib/canViewAgentActivity.ts b/desktop/src/features/agents/lib/canViewAgentActivity.ts
index 436a68169..fea48ecfb 100644
--- a/desktop/src/features/agents/lib/canViewAgentActivity.ts
+++ b/desktop/src/features/agents/lib/canViewAgentActivity.ts
@@ -4,6 +4,7 @@ export type CanViewAgentActivityInput = {
   relayOwnership: AgentOwnershipStatus | undefined;
   isManagedAgent: boolean | undefined;
   isOwnershipLoading: boolean;
+  isOwnershipError: boolean;
   isManagedLoading: boolean;
 };
 
@@ -22,6 +23,7 @@ export function resolveCanViewAgentActivity({
   relayOwnership,
   isManagedAgent,
   isOwnershipLoading,
+  isOwnershipError,
   isManagedLoading,
 }: CanViewAgentActivityInput): CanViewAgentActivityResult {
   if (relayOwnership?.isOwner === true) {
@@ -35,8 +37,8 @@ export function resolveCanViewAgentActivity({
   const isLoading =
     isOwnershipLoading || (isManagedAgent === undefined && isManagedLoading);
 
-  if (isManagedAgent === true && isOwnershipLoading) {
-    return { canView: true, isLoading: true };
+  if (isManagedAgent === true && (isOwnershipLoading || isOwnershipError)) {
+    return { canView: true, isLoading };
   }
 
   return { canView: false, isLoading };
diff --git a/desktop/src/features/agents/observerRelayStore.ts b/desktop/src/features/agents/observerRelayStore.ts
index ee8483dc8..cc8905d0a 100644
--- a/desktop/src/features/agents/observerRelayStore.ts
+++ b/desktop/src/features/agents/observerRelayStore.ts
@@ -41,6 +41,7 @@ const snapshotByAgent = new Map<string, ObserverSnapshot>();
 // Normalized pubkeys of agents we are actively managing. Only events whose
 // "agent" tag matches an entry here will be decrypted (defense-in-depth).
 const knownAgentPubkeys = new Set<string>();
+const knownAgentPubkeysByBridge = new Map<symbol, Set<string>>();
 
 let connectionState: ConnectionState = "idle";
 let errorMessage: string | null = null;
@@ -275,6 +276,7 @@ export function getAgentTranscript(
 export function useManagedAgentObserverBridge(
   agents: readonly Pick<ManagedAgent, "pubkey" | "status">[],
 ) {
+  const bridgeIdRef = React.useRef<symbol>(Symbol("managed-agent-observer"));
   const hasActiveAgent = React.useMemo(
     () =>
       agents.some(
@@ -285,10 +287,27 @@ export function useManagedAgentObserverBridge(
 
   // Keep the trusted-pubkey set in sync with the current managed agent list.
   React.useEffect(() => {
+    const bridgeId = bridgeIdRef.current;
+    knownAgentPubkeysByBridge.set(
+      bridgeId,
+      new Set(agents.map((agent) => normalizePubkey(agent.pubkey))),
+    );
     knownAgentPubkeys.clear();
-    for (const agent of agents) {
-      knownAgentPubkeys.add(normalizePubkey(agent.pubkey));
+    for (const pubkeys of knownAgentPubkeysByBridge.values()) {
+      for (const pubkey of pubkeys) {
+        knownAgentPubkeys.add(pubkey);
+      }
     }
+
+    return () => {
+      knownAgentPubkeysByBridge.delete(bridgeId);
+      knownAgentPubkeys.clear();
+      for (const pubkeys of knownAgentPubkeysByBridge.values()) {
+        for (const pubkey of pubkeys) {
+          knownAgentPubkeys.add(pubkey);
+        }
+      }
+    };
   }, [agents]);
 
   React.useEffect(() => {
@@ -309,6 +328,7 @@ export function resetAgentObserverStore() {
   transcriptByAgent.clear();
   snapshotByAgent.clear();
   knownAgentPubkeys.clear();
+  knownAgentPubkeysByBridge.clear();
   connectionState = "idle";
   errorMessage = null;
   notifyListeners();
diff --git a/desktop/src/features/profile/ui/UserProfilePanelSections.tsx b/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
index 0b550f80d..a4278469d 100644
--- a/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
+++ b/desktop/src/features/profile/ui/UserProfilePanelSections.tsx
@@ -124,7 +124,8 @@ export function ProfileSummaryView({
   userStatus,
 }: ProfileSummaryViewProps) {
   const { goChannel } = useAppNavigation();
-  const activeTurns = useActiveAgentTurns(isBot ? pubkey : null);
+  const activeTurns = useActiveAgentTurns(pubkey);
+  const canShowActivity = canViewActivity || activeTurns.length > 0;
 
   const metadataFields = [
     ...buildPublicFields({
@@ -185,7 +186,7 @@ export function ProfileSummaryView({
         </div>
       ) : null}
 
-      {showMemoriesIngress || showChannelsIngress || canViewActivity ? (
+      {showMemoriesIngress || showChannelsIngress || canShowActivity ? (
         <section className="space-y-2">
           {showMemoriesIngress ? (
             <ProfileIngressRow
@@ -217,7 +218,7 @@ export function ProfileSummaryView({
               }
             />
           ) : null}
-          {canViewActivity ? (
+          {canShowActivity ? (
             <ProfileIngressRow
               icon={Activity}
               label="Activity log"
diff --git a/desktop/src/features/profile/ui/UserProfilePopover.tsx b/desktop/src/features/profile/ui/UserProfilePopover.tsx
index cb760e6d1..8b52233d8 100644
--- a/desktop/src/features/profile/ui/UserProfilePopover.tsx
+++ b/desktop/src/features/profile/ui/UserProfilePopover.tsx
@@ -98,7 +98,8 @@ export function UserProfilePopover({
   const profile = profileQuery.data;
   const presenceStatus = presenceQuery.data?.[pubkey.toLowerCase()];
   const userStatus = userStatusQuery.data?.[pubkey.toLowerCase()];
-  const activeTurns = useActiveAgentTurns(role === "bot" ? pubkey : null);
+  const activeTurns = useActiveAgentTurns(pubkey);
+  const canShowActivity = canViewActivity || activeTurns.length > 0;
   const channelsQuery = useChannelsQuery();
   const channelIdToName = React.useMemo(() => {
     const map: Record<string, string> = {};
@@ -278,7 +279,7 @@ export function UserProfilePopover({
             </p>
           ) : null}
 
-          {canViewActivity && onOpenAgentSession ? (
+          {canShowActivity && onOpenAgentSession ? (
             <button
               className="flex w-full items-center gap-2 rounded-lg border border-border/60 px-3 py-2 text-left text-xs font-medium text-foreground transition-colors hover:bg-muted/50"
               data-testid={`user-profile-view-activity-${pubkey}`}
diff --git a/desktop/src/shared/api/tauriAgentOwnership.ts b/desktop/src/shared/api/tauriAgentOwnership.ts
index 846fa45d0..f66265ec6 100644
--- a/desktop/src/shared/api/tauriAgentOwnership.ts
+++ b/desktop/src/shared/api/tauriAgentOwnership.ts
@@ -1,4 +1,5 @@
 import { invokeTauri } from "@/shared/api/tauri";
+import { resolveOaOwner } from "@/shared/api/tauriIdentityArchive";
 
 export type AgentOwnershipStatus = {
   /** Lowercase hex pubkey of the queried agent. */
@@ -22,13 +23,26 @@ type RawAgentOwnershipStatus = {
 export async function resolveAgentOwnership(
   agentPubkey: string,
 ): Promise<AgentOwnershipStatus> {
-  const raw = await invokeTauri<RawAgentOwnershipStatus>(
-    "resolve_agent_ownership",
-    { agentPubkey },
-  );
-  return {
-    agentPubkey: raw.agent_pubkey,
-    ownerPubkey: raw.owner_pubkey,
-    isOwner: raw.is_owner,
-  };
+  try {
+    const raw = await invokeTauri<RawAgentOwnershipStatus>(
+      "resolve_agent_ownership",
+      { agentPubkey },
+    );
+    return {
+      agentPubkey: raw.agent_pubkey,
+      ownerPubkey: raw.owner_pubkey,
+      isOwner: raw.is_owner,
+    };
+  } catch (error) {
+    const owner = await resolveOaOwner(agentPubkey).catch(() => null);
+    if (!owner) {
+      throw error;
+    }
+
+    return {
+      agentPubkey: agentPubkey.toLowerCase(),
+      ownerPubkey: owner.owner,
+      isOwner: owner.isMe,
+    };
+  }
 }