Menu disappear

[Vexcel]

Hey Guys,
I have a strange problem with my menu. I use two Menus, one for Desktop and one for mobile device resolutions.
When I scale down my browser window from a desktop to mobile like resolution, there is a moment when the menu disapears and no menu is shown at all. When I scale it down the mobile menu appears (as it should). No matter which browser I use, this happens all the time.
I made some screenshots to show you what I mean.

Please help me out
thanks
regards
vexcel

Summary

[mldarshana]

Hi There @Vexcel

Thanks for writing in! Upon checking, I see that you’re using WP fast cache plugin. Could you please try disabling CSS/JavaScript autominification options from your caching plugin, then purge your server cache and re-test this issue again.

If you’re still having any issues, remove your custom CSS added to your site and re-test your issue.

Let us know how it goes.
Thanks!