Legendary drops not in inventory

Legendary drops… I think there’s a bug or something in my Diablo Immortal account. I seen it twice happening now. At first I wasn’t sure, but the light glowed orange and I mistaken it as a graphic from a monster dying. But in the second incident it was clearly a legendary drop in Challenge Rift because it made a tink noise and glowed orange and no monsters were nearby and it was the Rift Guardian. Well they were both Rift Guardians in this incident. I checked my video capture, but I don’t know how and I don’t think it capture it. Is there anyway you could check?