Steps to Reproduce

    <button onClick="ss.setShowFormulabar(true)"/>
    <spreadsheet id="ss" height="100%" width="100%" src="${empty param.file?'/WEB-INF/books/blank.xlsx':param.file}"
                 maxVisibleRows="150" maxVisibleColumns="40" showContextMenu="true"
                 showSheetTabContextMenu="true" />

1. run the code with ZK 9.5.1 or above + keikai 5.7.0 (or 5.8.0.FL)
2. load a blank sheet
3. click the button to show formula bar
4. type abc at A1, click A1

Current Result

the formula bar show nothing

Expected Result

the formula bar should show abc

Debug Information

• the height is 0px
  <div id="_z_616" class="zsformulabar-editor" style="width: 1355px; height: 0px;">...</div>
• affect a demo case
• ZK 9.5.0.3 doesn't have this bug.
• ZK 9.6.0 produces ZK-5003 and can't run with keikai
• notice the fix for keikai should work in ZK 9.0.1.2 ~ 9.6.0