Unable to add/queue additional engine versions

Development Getting Started & Setup
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I’m unable to add/queue additional Unreal Engine versions since yesterday 2022-01-03. The plus sign is grayed out. Epic Games Launcher 1.3.0.0, Windows 10 Home 21H2.

2022-01-04
2022-01-041920×1080 47.3 KB

Anybody else experiencing this?
Edit 2022-01-05:
Seems to work now:
2022-01-05
2022-01-053840×2160 319 KB