The given key was not present in the dictionary.

[Paul Brock]

Stated getting this error the other day when launching Admin Center

Couldn't update extension catalogs. Error: The given key was not present in the dictionary.

Environment is Windows Server 2019 Core

Current feeds:

https://aka.ms/sme-extension-catalog-feed

https://aka.ms/wac-insiders-feed

[#2]

@Paul Brock , it looks like this was fixed today (at least on my lab)

[#3]

@Christian Bezençon Good to know. I gave up because I wasn't sure what was causing the issue and uninstalled WAC and re-installed it.