Steps to Reproduce

    <button label="show" onClick="show()"/>
        <spreadsheet id="spreadsheet" hflex="1" vflex="1"
                     maxVisibleRows="100" maxVisibleColumns="20" />
    <zscript>
        public void show(){
            spreadsheet.setShowFormulabar(true);
            spreadsheet.setShowToolbar(true);
        }
    </zscript>

1. click "show" button

Current Result

zk.wpd:27589 Uncaught TypeError: Cannot read property 'style' of undefined
at init._resizeBody (zul.layout.wpd:266)
at init._resizeWgt (zul.layout.wpd:227)
at init._resize (zul.layout.wpd:202)
at init.resize (zul.layout.wpd:160)
at init.onCommandReady (zul.layout.wpd:128)
at _invoke (zk.wpd:16465)
at init.fire (zk.wpd:16448)
at _fire (zk.wpd:16591)
at Object.fire (zk.wpd:16760)
at Object.fire (zk.wpd:18564)
the formula bar is blank

Expected Result

the formula bar is visible

Debug Information

• 5.5.0 FL still has this bug

Workaround

spreadsheet.invalidate();