When creating first menu link, it doesn't appear until the cache is cleared

I had the same issue and I got it working by adding this cache tag. I'm not sure if this is the correct place in code to add it though.

I'm also getting same issue. Must be somewhere menu is caching whenever it's created.

Steps to reproduce issue:

1. Install 8.x-1.x.dev & configure this module
2. Then create a new group menu under any group. Navigate to group page, you won't find any menu there.
3. After clearing all cache you will find menu is visible.

Applied the patch in #7 (same as #10) didn't solved the problem.

Setting back the status to "needs review" cause my case is a specific case as the block is loaded in another block programmatically. I also added the 'menu_link_content_list' to the second block cache tags and the problem is gone.

If you're placing a block inside another block you'll want to pull all cache tags from the first block into the second.

Sounds like it worked for you though!