Mobile Menu Not Showing On Level 3 Menu Items

Hi,
I love the mobile menu. Thank you.
All is working fine except on level 3 menu items.
When I navigate to a level 3 menu item the menu disappears. Here is an example...
Level 1 - www.rcdmonterey.org/
Level 2 - www.rcdmonterey.org/natural-resources-management
Level 3 - www.rcdmonterey.org/soil-stability-and-health
Any idea on why this might be happening? I am using J 3.10.11 and pro_1.5.13.
Thank you!

HI
by my side I see that you have a lot of JS errors in the console ... this may affect the good working conditions of the menu
Please check that and fix your errors, then tell me if it works
CEd