X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftrunk%2Fsrc%2Fgtkmm%2Fworkarea.cpp;h=54216f3a38dff4ded1ccb82a41ee1d5c0053c1ec;hb=1f59228ea073eb60029cddfb4ee1a70de7f40f3d;hp=65600c53744933723b4147e1d139f3b8f3d64bca;hpb=f9d8a24a671b759c2be95bc10cd330f310b7dcc2;p=synfig.git

diff --git a/synfig-studio/trunk/src/gtkmm/workarea.cpp b/synfig-studio/trunk/src/gtkmm/workarea.cpp
index 65600c5..54216f3 100644
--- a/synfig-studio/trunk/src/gtkmm/workarea.cpp
+++ b/synfig-studio/trunk/src/gtkmm/workarea.cpp
@@ -2174,7 +2174,7 @@ public:
 bool
 studio::WorkArea::async_update_preview()
 {
-	if (async_renderer && async_renderer->updating == true)
+	if (single_threaded() && async_renderer && async_renderer->updating == true)
 	{
 		async_renderer->stop();
 		return false;