Strange phenomenon above Spartanburg, SC (September 4th, 2020)
They could very clearly see 20+ sources of light at a constant glow far beyond the clouds. They would flash (what you can see in the video) and then return to their normal glow, which would remain constant (what you cannot always see in the video). At times, they even appeared to move at lightning speeds, then back to being still within an instant.
These lights were constantly glowing and would randomly get brighter, then dull again.
The video with the colors turned down a bit. This makes it easier to see multiple, consistent light sources at the same time: