YouTube Channel Synchronization: Latest Video Failing to Import

I’m having problems with my YouTube channel synchronisation. The latest video won’t import, with the error message:

Command failed with exit code 1: /usr/bin/python3 /var/www/peertube/storage/bin/yt-dlp --force-ipv4 --js-runtimes 'node:/usr/bin/node' --merge-output-format mp4 -f 'bestvideo[vcodec^=avc1][height=1080]+bestaudio[ext=m4a]/bestvideo[vcodec!*=av01][vcodec!*=vp9.2][height=1080]+bestaudio/bestvideo[vcodec^=avc1][height<=1080]+bestaudio[ext=m4a]/bestvideo[vcodec!*=av01][vcodec!*=vp9.2]+bestaudio/best[vcodec!*=av01][vcodec!*=vp9.2]/bestvideo[ext=mp4]+bestaudio[ext=m4a]/best' -o /var/www/peertube/storage/tmp/e0871357ce26611e86238347f6408ba6ca38e3092aaa547437d75653fab4c505-import 'https://www.youtube.com/watch?v=b7dGsBXFtUs'

ERROR: unable to download video data: HTTP Error 403: Forbidden

[youtube] Extracting URL: https://www.youtube.com/watch?v=b7dGsBXFtUs
[youtube] b7dGsBXFtUs: Downloading webpage
[youtube] b7dGsBXFtUs: Downloading android vr player API JSON
[info] b7dGsBXFtUs: Downloading 1 format(s): 136+140

When I click « Retry import » I get: « Cannot retry video import since it has reached the maximum number of attempts ».

Is there something I can do to make this work? When I tried « Fully synchronize the channel » one older video that apparently was missing, was imported, so it doesn’t seem to be anything wrong with the synchronisation in general.