tlmgr gpg error

[Guy-Bart Stan]

Hi TexLive team,

I update my TexLive distribution daily. This morning I get consistently 
errors with tlmgr update:

/Library/TeX/texbin/tlmgr: signature verification error of 
/usr/local/texlive/2020/tlpkg/texlive.tlpdb.[EDITED] from 
http://anorien.csc.warwick.ac.uk/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb: 
cryptographic signature verification of
   /tmp/[EDITED]
against
http://anorien.csc.warwick.ac.uk/mirrors/CTAN/systems/texlive/tlnet/tlpkg/texlive.tlpdb.sha512.asc
failed. Output was:
gpg: Signature made Sat May  2 00:58:00 2020 BST
gpg:                using RSA key [EDITED]
gpg: BAD signature from "TeX Live Distribution <tex-live at tug.org>" 
[ultimate]

Please try from a different mirror and/or wait a few minutes
and try again; usually this is because of transient updates.
If problems persist, feel free to report to texlive at tug.org.


It was working properly yesterday.

What steps should I take to fix this issue?