Why I can’t record consecutive stories on Instagram anymore?

Once I could record videos and my Instagram app would split them into consecutive stories automatically, and it would allow me to create 10 stories per recording. In other words, I could record for 150 seconds without interruption.

Then it became 4 stories per continuous recording.

Now it only allows me to record 15 seconds, and then stops the camera.

What should I do to fix it?