I'm still working on this website, but the navigation works a bit weird on mobile devices, and I have no clue how to fix it. Basically, if you click on the menu button and click to navigate to a section, the button and logo disappear (at least until you refresh the entire page). I don't understand why this is happening, and sometimes it even happens when I haven't clicked on the menu button. Could someone please help? (Or link me to where I can read/watch something on how to fix it, please?)
P.S. Thoughts about the overall design would be appreciated too, as I'm a rookie and I'd like to know what others think before I finish and show this to my client.
Here is my public share link: LINK