From d55670e40b1016cc36cca5111c821b3e7c9a85b8 Mon Sep 17 00:00:00 2001
From: bomabomabomaboma <69987043+goldislead@users.noreply.github.com>
Date: Fri, 19 Jun 2026 00:43:24 +0000
Subject: [PATCH] [GPU] Rolls back ZPD cache erasure on guest BEGIN. Only
 affects kFast.

---
 src/xenia/gpu/command_processor.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/xenia/gpu/command_processor.cc b/src/xenia/gpu/command_processor.cc
index 3c0f65510..940a9a48a 100644
--- a/src/xenia/gpu/command_processor.cc
+++ b/src/xenia/gpu/command_processor.cc
@@ -1014,7 +1014,11 @@ bool CommandProcessor::BeginZPDReport(uint32_t report_address) {
   // something from a prior lifetime. The alternate fast path keeps it around
   // long enough for an async zero to help the next unresolved write.
   if (GetZPDMode() != ZPDMode::kFastAlt) {
-    fast_zpd_report_cached_values_.erase(end_record);
+    auto cache_it = fast_zpd_report_cached_values_.find(end_record);
+    if (cache_it != fast_zpd_report_cached_values_.end() &&
+        cache_it->second == 0) {
+      fast_zpd_report_cached_values_.erase(cache_it);
+    }
   }
 
   ReportHandle report_handle = zpd_next_report_handle_++;