From 9d313fde179e955a299e0c0dbcacb738d13ce52d Mon Sep 17 00:00:00 2001
From: ts-korhonen <teemu.s.korhonen@gmail.com>
Date: Wed, 15 Dec 2021 21:19:46 +0200
Subject: [PATCH] qt: clear buffers_in_use flags when changing renderer

---
 src/qt/qt_rendererstack.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/qt/qt_rendererstack.cpp b/src/qt/qt_rendererstack.cpp
index b25cd2df1..23f61f186 100644
--- a/src/qt/qt_rendererstack.cpp
+++ b/src/qt/qt_rendererstack.cpp
@@ -200,6 +200,10 @@ void RendererStack::switchRenderer(Renderer renderer) {
     }
     current->setFocusPolicy(Qt::NoFocus);
     addWidget(current.get());
+
+    for (auto& in_use : buffers_in_use)
+        in_use.clear();
+
     endblit();
 }