fix: correctly set the background flag

app/lib/pages/tabs/send_tab_vm.dart

@@ -162,7 +162,12 @@ final sendTabVmProvider = ViewProvider((ref) {
             () => SendPage(showAppBar: true, closeSessionOnClose: false, sessionId: session.sessionId),
             transition: RouterinoTransition.fade(),
           );
-          ref.notifier(sendProvider).setBackground(session.sessionId, true);
+          // Only restore background mode if the user actually backed out.
+          // When the receiver accepts, the provider replaces this page with the ProgressPage,
+          // which also resolves this future; the ProgressPage then owns the background flag.
+          if (ref.read(sendProvider)[session.sessionId]?.status == SessionStatus.waiting) {
+            ref.notifier(sendProvider).setBackground(session.sessionId, true);
+          }
           return;
         } else if (session.status == SessionStatus.sending || session.status == SessionStatus.finishedWithErrors) {
           ref.notifier(sendProvider).setBackground(session.sessionId, false);

app/lib/provider/network/send_provider.dart

@@ -410,16 +410,26 @@ class SendNotifier extends Notifier<Map<String, SendSessionState>> {
     if (state[sessionId]?.background == false) {
       final background = ref.read(settingsProvider).sendMode == SendMode.multiple;
 
-      // ignore: use_build_context_synchronously, unawaited_futures
-      Routerino.context.pushAndRemoveUntil(
-        removeUntil: HomePage,
-        transition: RouterinoTransition.fade(),
-        // immediately is not possible: https://github.com/flutter/flutter/issues/121910
-        builder: () => ProgressPage(
-          showAppBar: background,
-          closeSessionOnClose: !background,
-          sessionId: sessionId,
-        ),
+      unawaited(
+        // ignore: use_build_context_synchronously
+        Routerino.context
+            .pushAndRemoveUntil(
+              removeUntil: HomePage,
+              transition: RouterinoTransition.fade(),
+              // immediately is not possible: https://github.com/flutter/flutter/issues/121910
+              builder: () => ProgressPage(
+                showAppBar: background,
+                closeSessionOnClose: !background,
+                sessionId: sessionId,
+              ),
+            )
+            .then((_) {
+              if (background) {
+                // The page was popped (e.g. backing out mid-transfer), so the session
+                // runs in background again and is removed silently on success.
+                setBackground(sessionId, true);
+              }
+            }),
       );
     }