diff --git a/plugins/scenes/opengl/scene_opengl.cpp b/plugins/scenes/opengl/scene_opengl.cpp
--- a/plugins/scenes/opengl/scene_opengl.cpp
+++ b/plugins/scenes/opengl/scene_opengl.cpp
@@ -388,6 +388,8 @@
         timer = new QTimer(gs_debuggedScene);
         timer->setSingleShot(true);
         QObject::connect(timer.data(), &QTimer::timeout, gs_debuggedScene, []() {
+            Scene *scene = Compositor::self()->scene();
+            scene->makeOpenGLContextCurrent();
             GLVertexBuffer::cleanup();
             GLVertexBuffer::initStatic();
         });