Lost 4.7 preview option when adding an engine

Development Getting Started & Setup
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1

I load the launcher and go to Library, choose “Add Versions” and go to chose the version and the 4.7 preview is no longer there… I had a glitch trying to download it before, it looked like it was all the way downloaded but when I tried to run it it said “Not Installed” - so I removed it, and not I cannot even try to add it again

any ideas?

2

Found it - There was a 4.7 folder in C:\Program Files\Unreal Engine\Launcher\VaultCache

so I deleted it and now I can re-add the version - just posting things here in case anyone else ever has the issue