What changed. Until now, the ClickUp import fitted every task into three levels: epic, task, subtask. A subtask of a subtask was moved up to its task, and an epic or milestone inside another item was moved to the top. Now every item keeps its real ClickUp parent, however deep the nesting goes.
Where to see it. In the Work list, every item that has children gets an arrow, at any depth, so you can open a chain all the way down. On an item's page, its sub-items are listed under the description, and the path above the title shows its full chain of parents. A long chain shows the top item and the nearest two parents; click the dots to see the rest.
What to do. Open Import from ClickUp and run Refresh. Items an earlier import had moved go back under their real parent and keep their keys. Each one notes the move in its history. Anything you moved or changed in Work stays as you left it.
Adding work in Work. As in ClickUp, you can add a subtask under another subtask, and put an epic or milestone inside another epic or milestone. Use Move under… on the item, or pick a parent when you create it. Work refuses a move that would put an item inside its own sub-items.
Your numbers. No metric changes. Work's hierarchy is separate from the analytics, which read ClickUp directly.