WIP: try just waiting 0.5s rather than using an Event

src/openflexure_microscope_server/things/smart_scan.py

@@ -634,7 +634,8 @@ class SmartScanThing(Thing):
                         #}
                     )
                     capture_thread.start()
-                    acquired.wait()  # wait until the image is acquired
+                    #acquired.wait()  # wait until the image is acquired
+                    time.sleep(0.5)
                     positions.append(loc[:2])
                     names.append(name)