Cant save any content in the Object pane within the Chart module

The text is automatically

The text is automatically saved when you select another object.

Paul, Thanks for your prompt

Paul, Thanks for your prompt reply. But why do all the contents within the Object pane disappear when I re-open the same chart thread after safe exit upon clicking Save and Close button?

It should not. I cannot

It should not. I cannot reproduce this. Please zip all the files under your database folder and let me know the place to download the zip. Let me know which chart to test. Thanks, Paul

Actually, this also occurs

Actually, this also occurs to the Sample database. Let me describe more. Take the Sample DB as example. First, click "New Chart" button in the Chart module | type 'test' as Chart name; then click "Save" button; next click "Object pane" in the right side | input some texts like " I like this app so much" or whatever; finally, click "Save and Close" button. After that, re-open the 'test' chart mentioned above | again click "Object pane" in the right side, where the just typed texts are gone. That'all!
Thanks
Ron

When you type in the object

When you type in the object pane, please select an object in the chart first. The text has to be associated with an object. 

Thank you so much, Paul! I

Thank you so much, Paul! I finally know how this works!
Regards
Ron