You or your students may have noticed that drag-and-drop of components on the Viewer screen sometimes doesn't function cleanly: the component being moved is offset from the mouse pointer by a couple of centimetres, and/or the component being moved doesn't "stick" where it is dropped.
- To correct the first problem, it is usually enough to reload the page in the browser, by pressing F5.
- To deal with the second problem, drag the component to its desired position and release it as normal; if it then jumps to the top left, wait a couple of seconds and it should jump back to where it was placed.
Both of these glitches have shown up recently, and hopefully will be addressed in a future update to App Inventor. If you spot any other anomalies, please don't hesitate to get in touch.
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