在加载项的ribbon.xml中自定义的contextMenu的按钮总是消失不见

代码如下： <contextMenus> <!-- 单元格右键菜单 --> <contextMenu idMso="ContextMenuText"> <!-- 扩展菜单 --> <button id="menuBtnExpand" label="扩写" onAction="ribbon.OnAction" getEnabled="ribbon.OnGetEnabled" getImage="ribbon.GetImage" visible="true" /> <button id="menuBtnAbbreviation" label="缩写" onAction="ribbon.OnAction" getEnabled="ribbon.OnGetEnabled" getImage="ribbon.GetImage" visible="true" size="large"/> <button id="menuBtnContinue" label="续写" onAction="ribbon.OnAction" getEnabled="ribbon.OnGetEnabled" getImage="ribbon.GetImage" visible="true" /> <button id="menuBtnPolish" label="润色" onAction="ribbon.OnAction" getEnabled="ribbon.OnGetEnabled" getImage="ribbon.GetImage" visible="true" /> <button id="menuBtnChat" label="添加到对话框" onAction="ribbon.OnAction" getEnabled="ribbon.OnGetEnabled" getImage="ribbon.GetImage" visible="true" /> </contextMenu> </contextMenus> 1.开启自动纠错功能，如果选中了包含可能拼错的英文的时候，自定义的右键菜单按钮就会不见，关闭自动纠错可以解决 2.选中包含编号的文本，自定义的邮件菜单按钮也会不见