As the number of point lights increases, it turns off one by one.

[JCA Studios 0]

Hello, I brought up a map and was working on lighting to make my animation. (Because the night is in the background.) But as I added lights, at some point, the lights that I had created earlier disappeared one by one. In the place where the lights disappeared, the Point Light that I added remained the same, and the light value was the same as when the lights were shining. However, the lights kept disappearing. I tried several times to solve this problem, such as shutting down and restarting the program, but the results remained the same. A few times, there was even a strange phenomenon where the lights that turned off earlier turned off and the lights that turned off earlier turned off. How on earth can I solve this...? Please Help!

 

[hesam5486 49]

maybe it's for stabling the app prevent crashes?