Fix editor subpresentation rendering for macOS

Task-number: QT3DS-2779
Change-Id: I746366b3af919af39bc778567adc1c69b0386668
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/Authoring/Studio/Render/StudioSubPresentationRenderer.cpp b/src/Authoring/Studio/Render/StudioSubPresentationRenderer.cpp
index 893ee654..e72abe14 100644
--- a/src/Authoring/Studio/Render/StudioSubPresentationRenderer.cpp
+++ b/src/Authoring/Studio/Render/StudioSubPresentationRenderer.cpp
@@ -140,7 +140,7 @@ public:
             }
 
             m_surfaceViewer->update();
-
+            m_context->functions()->glFlush();
             m_updated = true;
             m_context->doneCurrent();
             lock.unlock();