diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/participants/ParticipantHostActionsSheet.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/participants/ParticipantHostActionsSheet.kt
index 8c76c30b4..c2dc3268b 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/participants/ParticipantHostActionsSheet.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/participants/ParticipantHostActionsSheet.kt
@@ -37,12 +37,12 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewModelScope
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.ui.MainActivity
 import com.vitorpamplona.amethyst.ui.components.toasts.multiline.UserBasedErrorMessage
@@ -88,7 +88,6 @@ internal fun ParticipantHostActionsSheet(
     catalog: com.vitorpamplona.amethyst.commons.viewmodels.RoomSpeakerCatalog? = null,
 ) {
     val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
-    val scope = rememberCoroutineScope()
 
     val roomATag =
         ATag(
@@ -98,9 +97,16 @@ internal fun ParticipantHostActionsSheet(
             relay = null,
         )
 
+    // Use the AccountViewModel's scope so the launched broadcast
+    // survives the onDismiss() that every action row triggers. A
+    // composition-scoped rememberCoroutineScope() gets cancelled the
+    // moment hostMenuTarget flips to null and the sheet leaves the
+    // tree — which races (and reliably loses) against the suspending
+    // signer.sign(template) call, so the promote/demote/kick events
+    // never actually went out.
     fun broadcast(template: com.vitorpamplona.quartz.nip01Core.signers.EventTemplate<out com.vitorpamplona.quartz.nip01Core.core.Event>?) {
         template ?: return
-        scope.launch { runCatching { accountViewModel.account.signAndComputeBroadcast(template) } }
+        accountViewModel.viewModelScope.launch { runCatching { accountViewModel.account.signAndComputeBroadcast(template) } }
     }
 
     val targetUser =
diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/stage/HandRaiseQueueSection.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/stage/HandRaiseQueueSection.kt
index 2d1421f82..a4e6baef2 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/stage/HandRaiseQueueSection.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/nests/room/stage/HandRaiseQueueSection.kt
@@ -37,10 +37,10 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
+import androidx.lifecycle.viewModelScope
 import com.vitorpamplona.amethyst.R
 import com.vitorpamplona.amethyst.commons.viewmodels.NestViewModel
 import com.vitorpamplona.amethyst.commons.viewmodels.RoomPresence
@@ -96,7 +96,6 @@ internal fun HandRaiseQueueSection(
 
     if (hands.isEmpty()) return
 
-    val scope = rememberCoroutineScope()
     Column(modifier = modifier.fillMaxSize().padding(top = 12.dp)) {
         Text(
             text = stringRes(R.string.nest_hand_raise_queue_title),
@@ -112,7 +111,14 @@ internal fun HandRaiseQueueSection(
                     hand = hand,
                     accountViewModel = accountViewModel,
                     onApprove = {
-                        scope.launch {
+                        // Approving makes `canSpeak()` true for this user, which
+                        // removes them from `hands` on the next recompose. If the
+                        // queue empties (no other raised hands), the whole
+                        // section leaves composition — a rememberCoroutineScope()
+                        // bound here would cancel the in-flight signer.sign(...)
+                        // and the promote never goes out. Launch on the
+                        // AccountViewModel's scope so signing outlives the row.
+                        accountViewModel.viewModelScope.launch {
                             val template = RoomParticipantActions.setRole(event, hand.pubkey, ROLE.SPEAKER)
                             template?.let { runCatching { accountViewModel.account.signAndComputeBroadcast(it) } }
                         }