Select Constant Bitrate, output Variable

hello! One of my biggest problems with the program is that I select a constant bitrate output but once the output is created, the video metadata says “variable” and shows me that the peak bitrate is almost 3 times greater than the selected one.

Captura de pantalla 2024-04-06 01.46.23


I tried to reproduce the issue with one of my test clips, but failed. As a matter of interest, can you reproduce the issue? If you can, would mind sharing the generating ffmpeg command line as plain text?