diff --git a/crates/fidc-core/src/platform_expr_strategy.rs b/crates/fidc-core/src/platform_expr_strategy.rs
index abb4768..e60cb86 100644
--- a/crates/fidc-core/src/platform_expr_strategy.rs
+++ b/crates/fidc-core/src/platform_expr_strategy.rs
@@ -2262,6 +2262,7 @@ impl PlatformExprStrategy {
         slot_working_symbols: &mut BTreeSet<String>,
         same_bar_buy_symbols: &mut BTreeSet<String>,
         pending_full_close_symbols: &BTreeSet<String>,
+        slot_blocking_symbols: &BTreeSet<String>,
         same_day_sold_symbols: &BTreeSet<String>,
         exit_symbols: &BTreeSet<String>,
         delayed_sold_symbols: &BTreeSet<String>,
@@ -2278,7 +2279,7 @@ impl PlatformExprStrategy {
         loop {
             let mut budget_working_symbols = slot_working_symbols.clone();
             budget_working_symbols.extend(same_bar_buy_symbols.iter().cloned());
-            if Self::effective_slot_count(&budget_working_symbols, pending_full_close_symbols)
+            if Self::effective_slot_count(&budget_working_symbols, slot_blocking_symbols)
                 >= selection_limit
             {
                 break;
@@ -2304,7 +2305,7 @@ impl PlatformExprStrategy {
                 &budget_working_symbols,
                 &value_symbols,
                 *pending_buy_value,
-                pending_full_close_symbols,
+                slot_blocking_symbols,
             );
             let available_buy_cash = slot_buy_cash.min(*aiquant_available_cash);
             if debug_daily_top_up {
@@ -8331,6 +8332,7 @@ impl Strategy for PlatformExprStrategy {
         let daily_top_up_target_budget = aiquant_total_value * trading_ratio;
         let mut daily_top_up_pending_buy_value = 0.0_f64;
         let mut pending_full_close_symbols = BTreeSet::<String>::new();
+        let mut slot_blocking_symbols = delayed_sold_symbols.clone();
         let mut interleaved_pending_full_close_symbols = BTreeSet::<String>::new();
         let risk_level_forced_exit_time = self.risk_level_forced_exit_time();
         self.pending_full_close_symbols.retain(|symbol| {
@@ -8677,12 +8679,14 @@ impl Strategy for PlatformExprStrategy {
                         )
                         .is_some();
                     if close_submitted {
+                        slot_working_symbols.remove(&position.symbol);
                         if Self::projected_position_is_flat(&projected, &position.symbol) {
                             same_day_sold_symbols.insert(position.symbol.clone());
                             pending_full_close_symbols.remove(&position.symbol);
                             self.pending_full_close_symbols.remove(&position.symbol);
                         } else {
                             pending_full_close_symbols.insert(position.symbol.clone());
+                            slot_blocking_symbols.insert(position.symbol.clone());
                             self.pending_full_close_symbols
                                 .insert(position.symbol.clone());
                         }
@@ -8709,6 +8713,7 @@ impl Strategy for PlatformExprStrategy {
                         &mut slot_working_symbols,
                         &mut same_bar_buy_symbols,
                         &pending_full_close_symbols,
+                        &slot_blocking_symbols,
                         &same_day_sold_symbols,
                         &exit_symbols,
                         &delayed_sold_symbols,
@@ -8769,6 +8774,7 @@ impl Strategy for PlatformExprStrategy {
                             self.pending_full_close_symbols.remove(&position.symbol);
                         } else {
                             pending_full_close_symbols.insert(position.symbol.clone());
+                            slot_blocking_symbols.insert(position.symbol.clone());
                             self.pending_full_close_symbols
                                 .insert(position.symbol.clone());
                         }
@@ -8797,6 +8803,7 @@ impl Strategy for PlatformExprStrategy {
                         &mut slot_working_symbols,
                         &mut same_bar_buy_symbols,
                         &pending_full_close_symbols,
+                        &slot_blocking_symbols,
                         &same_day_sold_symbols,
                         &exit_symbols,
                         &delayed_sold_symbols,
@@ -8835,6 +8842,7 @@ impl Strategy for PlatformExprStrategy {
                             self.pending_full_close_symbols.remove(&position.symbol);
                         } else {
                             pending_full_close_symbols.insert(position.symbol.clone());
+                            slot_blocking_symbols.insert(position.symbol.clone());
                             self.pending_full_close_symbols
                                 .insert(position.symbol.clone());
                         }
@@ -8862,6 +8870,7 @@ impl Strategy for PlatformExprStrategy {
                     &mut slot_working_symbols,
                     &mut same_bar_buy_symbols,
                     &pending_full_close_symbols,
+                    &slot_blocking_symbols,
                     &same_day_sold_symbols,
                     &exit_symbols,
                     &delayed_sold_symbols,