Not being able to install nuget.org v3 packages via proxy, works fine with v2

Sonatype Nexus Repository
1

Created two different nuget proxies in OSS 3.41.1-01 the v2 proxy looks working fine, v3 does not install or list the package, 502 bad gateway is given

Added snapshots from commands and server, any given help will be very much appreciated

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image1661×293 30.3 KB

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V2 Repo

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image811×647 25.2 KB

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V3 Repo

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image778×681 25.7 KB