layui time controls flash

Initialization time controls, it vanished into the trigger when clicked.
This is mainly pop-up window appears on the time controls.
Solution:
adding a property trigger initialization: 'click',
such as

 laydate.render({
        elem: '#executionTime',
        format: 'yyyy-MM-dd HH:mm:ss',
        type: 'datetime',
        position:'fixed',
        trigger: 'click',
    });