Error when trying to upload a package to the unity asset store (file not found, loader.html)

Going to Asset Store Tool > Package Upload, I get a file not found error for

FileNotFoundException: Could not find file “C:\Program Files\Unity\Hub\Editor\2020.1.0b16\Editor\Data\Resources\loader.html”

Is this a bug in Unity ? How can I check the integrity of the files of the unity editor ? What should I do ?

Thanks in advance !

It was a bug, reported it (in the mean time, I took that file from a previous version of the unity editor, where it was supposed to be).

@telnobynoyator_unity

You can find this file loader.html in the previous version of the Unity, where it worked and drop it into the new Unity.

In my case i took that file from version 2019.3.13f1 and drop it to the version 2020.1.9f1