3rd Layer HasMany Relationship Manager doesn't show

Hello, everyone. I'm trying to experiment with Filament's Relationship Manager. I'm making a todo app with models like this: Task -> (has many) Subtask -> (has many) Subsubtask Editing a task shows the subtasks fine. However, when I try to edit a subtask, a modal shows and the subsubtask relationship manager does not display. Yes, I did not forget to register the Subsubtask Relation Manager to the SubtaskResource.php. Does anyone notice what I've been doing wrong? Also, how do I make it so that a new page (not a modal) shows up when trying to edit a Subtask? Any guidance is much appreciated. Just point me to the right resources and I'll do my best to learn by myself! Thank you!