Hello,
Apologies about the Inconveniences caused and Thanks for your Patience!
We have been checking your Page for quite some time now, however, we unfortunately cannot find what is causing this issue. What we know at the moment is that the issue is because of the Page Transition functionality and the Menu Links works fine when the Page Transition is disabled. Simply try adding the .no-transition Class to the <body> Tag and this should fix the issue.
Also, we would like to confirm that this issue is not because of the Canvas Template but due to the Customized Codes on the Page as all the other pages work perfectly fine with the Page Transitions enabled except this. So we would recommend you to consider building this Page again from scratch using the Default Files within the Package. Meanwhile, we will continue to check the Codes on this Page and will get back with you shortly in regard to the exact issue on the Page.
Thanks for your Patience.
Do let us know if we can help you with anything else or if you find any further issues with Canvas.