In case I missed something I tried to regenerate the bug in main Avalon template downloaded from PrimeStore.
I have just added below menu item which links to an available page.
Code: Select all
<li role="menuitem">
<p:link outcome="/input">
<i class="pi pi-fw pi-check-square"/>
<span>Input</span>
</p:link>
</li>
https://we.tl/t-NLB7Jxfmge