Expanding the first layer of all nodes in the focused pane only expands the first 12 nodes; the rest remain collapsed.
But I am wondering whether or not it can be solved, because the issue is that WorkFlowy uses virtual rendering for long lists: only the first batch of child nodes near the current viewport exist in the initial DOM, and there are no corresponding .project / .expand elements for nodes that have not been scrolled to, so the previous version could only expand the first ten or so rendered nodes.
Not at all sure, but I would expect it to work because surely whether a node is expanded is not just in the rendering (display)? If I refresh a web page, I think (not checked) that the nodes keep their expanded state even if they are low down on the page.