@Николя i think its there for dev

i used it recently it and had the same issue

if you use it on production it will go away

but make sure to use the production env key and not the dev env key

however note that on free version mux videos will be deleted after 24hrs

Yes, you are right, but I think there is no point in using the free version if the videos will be deleted after a day, right?

yes

i am using next-cloudinary instead of mux

for free tiers

as an alternative