One asana task (marked as milestone, with subtasks) just disappeared

Welcome to the Forum @anon64295455 and thank you for reaching out!

Sorry to hear you were experiencing this inconvenience. In this case I would highly encourage you to contact our Support Team who will be more than happy to assist you with this issue! When you do, feel free to add the URL of this thread to save yourself from re-explaining everything.

Apologies for not being able to help further via the Forum! I hope this gets resolved soon!