I am having the same issue that Erik talks about in his comment on this blog post. https://world.optimizely.com/blogs/matthew-slim/dates/2023/6/new-menu-system-released/
When I trigger an action on a controller in the admin that is not the index action, the sidebar menu just shows the dots forever without loading the side menu. It seems like this is an issue relating to the code not being able to find the product id.
Is this an optimizely bug or is there something missing from the documentation about custom navigation and tools? Erik has a workaround of manually assigning the "data-epi-product-id". Is this the only way to fix this?