Black frames between key frames after full video translation

[TheConstant3]

I run project on RTX 3090 TI, in docker container (dockerfile below)

FROM nvcr.io/nvidia/cuda:11.3.1-cudnn8-runtime-ubuntu20.04

ENV DEBIAN_FRONTEND=noninteractive

# install base dependencies
RUN apt update && apt install curl wget nano libgl1 -y

# install python3.8+pip
RUN apt install software-properties-common -y && \
    add-apt-repository ppa:deadsnakes/ppa -y && \
    apt update && \
    apt install python3.8 python3.8-distutils -y && \
    curl -sS https://bootstrap.pypa.io/get-pip.py | python3.8

WORKDIR /app

RUN pip install numpy==1.23.1 torch==1.12.1+cu113 torchvision==0.13.1+cu113 torchaudio==0.12.1 --extra-index-url https://download.pytorch.org/whl/cu113

COPY requirements.txt .

RUN pip install -r requirements.txt

RUN apt update && apt install build-essential cuda-toolkit-11-3 ffmpeg -y

COPY deps/ /app/deps/
COPY install.py .

RUN python3.8 install.py

CMD [ "/bin/bash" ]

and fix build-linux-cpu+cuda.sh replaced nvcc -arch compute_50 ... with nvcc -arch compute_86 ...

After run propogation, i have video with black frames between keyfames (screenshot below)

What could be the problem?