Visual Editor looses my changes

Please i need someone’s help, i am using the vaadin designer but anytime i switch to the source, all i have done will vanish with no code in the source.

(move to a new thread as this had no relation to table header issue)

Are you sure you are using the latest version of the Visual Editor from Vaadin Plug-in for Eclipse ?

If the issue persists, please describe how to reproduce the issue.

If updating to latest version does not resolve issue, remember to update to 2.0.0 version of the plugin to be released next Tue.