When using TWebEditAutoComplete using WebResponsivemanager when you change between states it get the error: List index out of bounds (-1) . After you compile and run the web application, the page dont even run, showing this error on the console:
Uncaught SyntaxError: unexpected token: ':'
Uncaught ReferenceError: rtl is not defined
Even if you add a item to the autocomplete and put the itemindex to 0 then when you change states on the responsivemanager you dont get the error of index out of bound but the page dont run anyway.
The curious part is that if instead of adding the webautocomplete to the form you create it with code on runtime then you can run the webpage without error.