Yup I have the same problem, I end up installing the original SSD from Apple. this problem happens when I accidentally locked my MacBook from find my and erased the entire SDD from OWC Aura Pro X2 SSD that was installed and running the latest MacOS Big Sur.
However when I want to reinstall macOS big Sur into OWC Aura Pro X2 SSD, my MacBook does not detect the drive. it feels like when i erased my MacBook data from Find My app on iPhone, it deleted the entire OWC Aura Pro X2 SSD which causes my MacBook not able to detect OWC Aura Pro X2 SSD presence when trying to reinstall the recovery mode. disk utilities doesn't detect OWC Aura Pro X2 SSD. Im out off options now and felt like I should give up and throw OWC Aura Pro X2 SSD away!!