diff --git a/src/BizHawk.Client.Common/DisplayManager/DisplayManagerBase.cs b/src/BizHawk.Client.Common/DisplayManager/DisplayManagerBase.cs
index 5a30295c011..653b59c55a2 100644
--- a/src/BizHawk.Client.Common/DisplayManager/DisplayManagerBase.cs
+++ b/src/BizHawk.Client.Common/DisplayManager/DisplayManagerBase.cs
@@ -765,6 +765,8 @@ private FilterProgram UpdateSourceInternal(JobInfo job)
 						job.OffscreenBb = new(new(1, 1));
 					}
 
+					DiscardApiHawkSurfaces();
+
 					return null;
 				}
 			}
@@ -883,6 +885,7 @@ public void Blank()
 			_gl.BindDefaultRenderTarget();
 			_gl.ClearColor(Color.Black);
 			SwapBuffersOfGraphicsControl();
+			DiscardApiHawkSurfaces();
 		}
 
 		protected virtual void UpdateSourceDrawingWork(JobInfo job)