diff --git a/apps/desktop/src/plugins/hermes-bots/group-chat-view.tsx b/apps/desktop/src/plugins/hermes-bots/group-chat-view.tsx
index e0c3442f43..d550afb05f 100644
--- a/apps/desktop/src/plugins/hermes-bots/group-chat-view.tsx
+++ b/apps/desktop/src/plugins/hermes-bots/group-chat-view.tsx
@@ -1163,7 +1163,11 @@ export function GroupChatWorkspace({ group, members, onBack, visible = true }: G
                 </div>
               ]}
           {roomClarifies.map(entry => (
-            <GroupClarifyCard entry={entry} key={`clarify:${entry.memberKey}:${entry.requestId}`} members={members} />
+            <GroupClarifyCard
+              entry={entry}
+              key={`clarify:${entry.thread || 'legacy'}:${entry.memberKey}:${entry.requestId}`}
+              members={members}
+            />
           ))}
           {room.running ? (
             <div className="px-2 py-1 text-[0.7rem] italic text-(--ui-text-quaternary)" key={'working'}>
diff --git a/apps/desktop/src/plugins/hermes-bots/group-rounds.ts b/apps/desktop/src/plugins/hermes-bots/group-rounds.ts
index a6cad78c98..437d2ee708 100644
--- a/apps/desktop/src/plugins/hermes-bots/group-rounds.ts
+++ b/apps/desktop/src/plugins/hermes-bots/group-rounds.ts
@@ -18,7 +18,13 @@ import {
   updateGroupChat
 } from './group-chat'
 import type { GroupChatRoom, GroupHoldStamp } from './group-chat'
-import { durableGroupChatMembers, followGroupChat, groupMemberKey } from './group-membership'
+import {
+  durableGroupChatMembers,
+  followGroupChat,
+  groupMemberKey,
+  groupSessionKey,
+  hasThreadScopedGroupSession
+} from './group-membership'
 import { runGroupContinuationMembers, runGroupRoundMember } from './group-round-members'
 import { rejectGroupSlashCommand } from './group-slash'
 import { GROUP_TURN_HARD_CAP_MS, harvestStrandedGroupReply } from './group-turns'
@@ -399,7 +405,15 @@ export async function stopGroupThread(group: string, thread: null | string, memb
   })
 
   // The captured descriptor owns routing even if the roster has changed.
-  const sessionId = onTurn ? (room.sessions || {})[groupMemberKey(onTurn)] : null
+  // Sessions are per thread, so a stop targets the session of the thread it
+  // was issued from; an unmigrated room still answers on its bare pointer.
+  const sessions = room.sessions || {}
+  const onTurnKey = onTurn ? groupMemberKey(onTurn) : ''
+
+  const sessionId = onTurn
+    ? sessions[groupSessionKey(thread || 'legacy', onTurn)] ||
+      (hasThreadScopedGroupSession(sessions, onTurnKey) ? null : sessions[onTurnKey])
+    : null
 
   if (onTurn && sessionId) {
     try {
diff --git a/apps/desktop/src/plugins/hermes-bots/session-sweep.ts b/apps/desktop/src/plugins/hermes-bots/session-sweep.ts
index 2a5cc0e1c2..23bb8464de 100644
--- a/apps/desktop/src/plugins/hermes-bots/session-sweep.ts
+++ b/apps/desktop/src/plugins/hermes-bots/session-sweep.ts
@@ -12,7 +12,7 @@ import { host } from '@hermes/plugin-sdk'
 import { PROFILE_SESSION_LIST_LIMIT } from './canonical-chat'
 import { $lastRoster } from './data'
 import { $groupChats } from './group-chat'
-import { groupMemberKey } from './group-membership'
+import { groupMemberKey, groupSessionMemberKey } from './group-membership'
 import { backendTargetProfile, botConnectionRoute, requestForBot } from './routing'
 import type { GroupMember, RosterRow } from './types'
 
@@ -121,25 +121,28 @@ function hideOwnedBotSessions() {
         }
 
         const persisted = room?.sessionOwners?.[key]
-        const derived = (room?.members || []).find((member: GroupMember) => groupMemberKey(member) === key)
+        // Sessions are keyed per thread (`thread:<id>::<memberKey>`); the
+        // owner lookup is a MEMBER question, so derive from the member half.
+        const memberKey = groupSessionMemberKey(key)
+        const derived = (room?.members || []).find((member: GroupMember) => groupMemberKey(member) === memberKey)
 
         // Bare keys are legacy local rooms. A source-qualified key without its
         // immutable owner is unsafe: never let it fall through ambient routing.
         const owner =
           persisted ||
           derived ||
-          (!key.includes('::')
+          (!memberKey.includes('::')
             ? {
-                name: key
+                name: memberKey
               }
             : null)
 
-        if (key.includes('::')) {
+        if (memberKey.includes('::')) {
           const route = owner?.route
           const sourceMarked = owner?.sourceScoped || owner?.remoteSource
           const routeKey = route?.connectionId && route?.profile ? `${route.connectionId}::${route.profile}` : ''
 
-          if (!sourceMarked || !route?.targetProfile || routeKey !== key) {
+          if (!sourceMarked || !route?.targetProfile || routeKey !== memberKey) {
             return null
           }
         }
diff --git a/apps/desktop/src/plugins/hermes-bots/types.ts b/apps/desktop/src/plugins/hermes-bots/types.ts
index 5b9ad0cc00..e4adfbce70 100644
--- a/apps/desktop/src/plugins/hermes-bots/types.ts
+++ b/apps/desktop/src/plugins/hermes-bots/types.ts
@@ -216,6 +216,9 @@ export interface GroupPrompt {
   questions?: GroupPromptQuestion[] | null
   requestId: string
   sessionId?: null | string
+  /** The thread the blocking question belongs to — part of the mirror key,
+   *  since a member can be blocked in two threads at once. */
+  thread?: string
 }
 
 export type GroupActivityKind =