Strange orb appeared in only one frame of my 30-second night timelapse – not a plane, satellite, or meteor?

Strange orb appeared in only one frame of my 30-second night timelapse – not a plane, satellite, or meteor?
Hi everyone, I noticed something weird while reviewing my night sky timelapse. Each frame had a 30-second exposure with just a 1-second interval between them, and I was shooting at ISO 6400. In one frame — specifically frame 19 — a bright orb-like object suddenly appeared. What’s strange is that it wasn’t there in frame 18 or 20, which were taken just before and after with the exact same settings.

The object looks solid and bright with no visible trail or movement, which made me rule out a satellite, plane, or meteor. It just popped up and vanished after that single frame. This was captured in Mindanao, Philippines, sometime around 8:24pm I used only my smartphone on a tripod — no lens or filter attached.

I’m really curious what this could be — maybe some kind of camera sensor anomaly or something else? If anyone has insight or has seen something similar, I’d appreciate your thoughts.

Camera used: Redmi 10c 
30 seconds 
Iso 6400
Interval: 1

Location: Mindanao Philippines 
Time: 8:24pm
Pointing at South East 


Note: If you can to view all of my raw images you can view it from this link: https://drive.google.com/drive/folders/15a5BFxOPp-MgIdtkCSE9VgkDMH34zx80