Hello @Nablax and welcome!!
Unfortunately, you arrive just before the resolution of this problem by @pierre-gilles it seems. It is still being tested but it should not take long. Check here: https://community.gladysassistant.com/t/nouvelle-image-docker-dev-avec-fix-nouvelle-fonctionnalites/6303. I think your issue is listed and several of us have had the same issue recently.
Have a good evening