So, I have tried to hover the DJI Mini SE drone in the dark room/basement but it looks like it cannot stay in position.
Basically, I was testing if I can fly the drone at night. So, I tested in the dark room first.
See the video from this link:

https://youtu.be/QuJYHsLYUFI

Hello there DroneVid1. I am sorry for the trouble this has caused and thank you for reaching out. Using the Vision System of the the DJI Mini SE, when GPS is unavailable, the Downward Vision System is enabled if the surface has a discernable surface and sufficient light. The Downward Vision System works best when the drone is at an altitude of 0.5m to 10m. If the drone's altitude is above 10m, the Vision System may be affected, so extra caution is required. Thank you.

Hi!
You might be better off posting your question in the 'products' section of this forum.
That is way more active.
Just create a new thread here : https://forum.dji.com/forum-129-1.html and select the right category / subcategory.

DJI Stephen Posted at 9-22 21:19
Hello there DroneVid1. I am sorry for the trouble this has caused and thank you for reaching out. Using the Vision System of the the DJI Mini SE, when GPS is unavailable, the Downward Vision System is enabled if the surface has a discernable surface and sufficient light. The Downward Vision System works best when the drone is at an altitude of 0.5m to 10m. If the drone's altitude is above 10m, the Vision System may be affected, so extra caution is required. Thank you.

[view_image]

Awesome information! Thanks.

Montfrooij Posted at 9-23 05:14
Hi!
You might be better off posting your question in the 'products' section of this forum.
That is way more active.

Thanks @Montfrooij.

DroneVid1 Posted at 9-23 07:35
Thanks @Montfrooij.

You're welcome!
Good luck

I had the same problem with my mavic, just re calibrate everything that solved the issue for me

DroneVid1 Posted at 9-23 07:34
Awesome information! Thanks.

Hi there DroneVid1. You are very much welcome and if you have any other inquiries or concerns with DJI. Please feel free to post it here at DJI Forum. We are all here to help and assist you. Thank you.