Delays in Lunite delivery can show up at some point of top hours or by using gadget upkeep on Wuthering Waves servers.

https://www.scribd.com/document/987516701/Wuthering-Waves-Lunite-Pricing-Is-Top-Up-Cheaper-Than-In-Game-148519

Delays in Lunite shipping can manifest for the period of peak hours or because of manner repairs on Wuthering Waves servers.