diff --git a/cockatrice/src/interface/widgets/server/user/user_info_popup.cpp b/cockatrice/src/interface/widgets/server/user/user_info_popup.cpp
index 8be76eea0..967de2f2c 100644
--- a/cockatrice/src/interface/widgets/server/user/user_info_popup.cpp
+++ b/cockatrice/src/interface/widgets/server/user/user_info_popup.cpp
@@ -634,9 +634,10 @@ void UserInfoPopup::onGamesContextMenu(const QPoint &pos)
                        "QMenu::item:selected{background:%4;}")
             .arg(colorStr(theme.bg), colorStr(theme.text), colorStr(theme.border), colorStr(theme.buttonHover)));
 
-    const bool canJoin = !game.started() && game.player_count() < game.max_players();
+    // Never grey the join action out: GameSelector::joinGame() asks whether to
+    // fall back to spectating when the game is full or already running, so a
+    // disabled entry would just read as a dead button.
     QAction *join = menu.addAction(tr("Join game"));
-    join->setEnabled(canJoin);
 
     QAction *spec = nullptr;
     if (game.spectators_allowed()) {
diff --git a/cockatrice/src/interface/widgets/server/user/user_list_widget.cpp b/cockatrice/src/interface/widgets/server/user/user_list_widget.cpp
index d9e1e1e7e..3b8fc08b7 100644
--- a/cockatrice/src/interface/widgets/server/user/user_list_widget.cpp
+++ b/cockatrice/src/interface/widgets/server/user/user_list_widget.cpp
@@ -430,9 +430,6 @@ UserListWidget::UserListWidget(TabSupervisor *_tabSupervisor,
             hidePopup(true);
             requestVisibleItemResources();
         });
-
-        // Forward join requests from popup upward
-        connect(userInfoPopup, &UserInfoPopup::joinGameRequested, this, &UserListWidget::joinGameRequested);
     } else {
         // Dialog mode: keyboard selection drives the Invite button.
         connect(userTree, &QTreeWidget::currentItemChanged, this, [this](QTreeWidgetItem *current, QTreeWidgetItem *) {
@@ -692,6 +689,17 @@ void UserListWidget::connectPopupSignals()
             [this](const QString &n) { userContextMenu->execAdjustJudge(n, true); });
     connect(userInfoPopup, &UserInfoPopup::demoteFromJudgeRequested, this,
             [this](const QString &n) { userContextMenu->execAdjustJudge(n, false); });
+
+    // Joining is a tab-level action, not a per-user one: the popup's games list
+    // spans every room the user is in, so the target room may not be open yet.
+    // Hand it to the supervisor, which owns the intent that joins the room if
+    // needed. The popup closes here because that intent switches tabs, which
+    // would otherwise strand it on a list that is no longer on screen.
+    connect(userInfoPopup, &UserInfoPopup::joinGameRequested, this,
+            [this](const int gameId, const int roomId, const bool asSpectator) {
+                hidePopup(true);
+                tabSupervisor->joinGameFromUserCard(gameId, roomId, asSpectator);
+            });
 }
 
 bool UserListWidget::eventFilter(QObject *obj, QEvent *event)
diff --git a/cockatrice/src/interface/widgets/server/user/user_list_widget.h b/cockatrice/src/interface/widgets/server/user/user_list_widget.h
index 412271160..9802387b2 100644
--- a/cockatrice/src/interface/widgets/server/user/user_list_widget.h
+++ b/cockatrice/src/interface/widgets/server/user/user_list_widget.h
@@ -172,7 +172,6 @@ signals:
     void removeBuddy(const QString &userName);
     void addIgnore(const QString &userName);
     void removeIgnore(const QString &userName);
-    void joinGameRequested(int gameId, int roomId, bool asSpectator);
     void sectionExpanded(Section section, bool expanded);
     /** Dialog mode: the user activated (Enter/double-click) the given row. */
     void userActivated(const QString &userName);
diff --git a/cockatrice/src/interface/widgets/tabs/tab_supervisor.cpp b/cockatrice/src/interface/widgets/tabs/tab_supervisor.cpp
index c9bda7703..0dc246eaa 100644
--- a/cockatrice/src/interface/widgets/tabs/tab_supervisor.cpp
+++ b/cockatrice/src/interface/widgets/tabs/tab_supervisor.cpp
@@ -1100,10 +1100,27 @@ void TabSupervisor::replayLeft(TabGame *tab)
 }
 
 void TabSupervisor::joinReportGame(const int gameId, const int roomId)
+{
+    joinGameByIntent(gameId, roomId, true);
+}
+
+void TabSupervisor::joinGameFromUserCard(const int gameId, const int roomId, const bool asSpectator)
+{
+    joinGameByIntent(gameId, roomId, asSpectator);
+}
+
+/**
+ * Runs the join/spectate intent for @p gameId in @p roomId.
+ *
+ * The intent owns the whole flow: if the room tab is not open yet it joins the
+ * room first, then retries the game, so callers do not have to care whether the
+ * room happens to be on screen.
+ */
+void TabSupervisor::joinGameByIntent(const int gameId, const int roomId, const bool asSpectator)
 {
     auto *remoteClient = qobject_cast<RemoteClient *>(client);
     if (!remoteClient) {
-        actShowPopup(tr("Report joins are only available on a remote server."));
+        actShowPopup(tr("Game joins are only available on a remote server."));
         return;
     }
 
@@ -1112,7 +1129,7 @@ void TabSupervisor::joinReportGame(const int gameId, const int roomId)
     ctx->roomContext.serverContext.port = QString::number(remoteClient->peerPort());
     ctx->roomContext.roomId = roomId;
     ctx->gameId = gameId;
-    ctx->asSpectator = true;
+    ctx->asSpectator = asSpectator;
 
     auto *joinGameIntent = new IntentJoinServerGame(this, remoteClient, std::move(ctx));
     joinGameIntent->setParent(this);
diff --git a/cockatrice/src/interface/widgets/tabs/tab_supervisor.h b/cockatrice/src/interface/widgets/tabs/tab_supervisor.h
index 066c84a77..1a4f7f749 100644
--- a/cockatrice/src/interface/widgets/tabs/tab_supervisor.h
+++ b/cockatrice/src/interface/widgets/tabs/tab_supervisor.h
@@ -128,6 +128,8 @@ private:
     static QString sanitizeTabName(QString dirty);
     static QString sanitizeHtml(QString dirty);
     void resetTabsMenu();
+    /** Shared join/spectate driver behind the report tab and the profile hover card. */
+    void joinGameByIntent(int gameId, int roomId, bool asSpectator);
 
 public:
     explicit TabSupervisor(AbstractClient *_client, QMenu *tabsMenu, QWidget *parent = nullptr);
@@ -198,6 +200,8 @@ public slots:
     TabEdhRec *addEdhrecTab(const CardInfoPtr &cardToQuery, bool isCommander = false);
     void openReplay(GameReplay *replay);
     void joinReportGame(int gameId, int roomId);
+    /** Joins or spectates a game listed on a user's profile hover card. */
+    void joinGameFromUserCard(int gameId, int roomId, bool asSpectator);
     void openTabModeration(const QString &userName = {});
     void switchToFirstAvailableNetworkTab();
     void maximizeMainWindow();