write_videofile() produces an index error when I try to download a video with a loop

I have a 15 seconds video and I want to use moviepy to loop it until it reaches 198 seconds. However I'm given the error "IndexError: index 0 is out of bounds for axis 0 with size 0". This is the current code:

from moviepy import *

clip = VideoFileClip("path_to_the_clip.mp4")
duration_loop = vfx.Loop(duration=198)
clip_with_loop = duration_loop.apply(clip)
clip_with_loop.write_videofile("final.mp4")

Expected Behavior

The code should produce a clip repeting my video until it reached 198 seconds.

Actual Behavior

When I try to use "write_videofile" it produces an index error.

I tried this code with different durations and it works perfectly until 64. After that, any duration longer produces this error.

Specifications

• Python Version: 3.13.9
• MoviePy Version: 2.2.1
• Platform Name: Windows 11 Pro
• Platform Version: 25H2