Source Control Graph tab stays forever in "loading" mode

[ssg]

It stays rolling like that forever. The log:

Using hg 6.3.1+hg4.c44f350759c3 from C:\Program Files\Mercurial\hg.exe
hg root
hg paths
hg log -T json -r p1() + p2()
hg branch
hg status -C
hg cat <REDACTED MODIFIED FILENAME> -r .
hg log -T json -r p1() + p2()
hg cat <REDACTED MODIFIED FILENAME> -r .
hg branch
hg status -C
hg cat <REDACTED MODIFIED FILENAME> -r .
hg incoming -q
hg outgoing -q
remote: ssh: Could not resolve hostname <REDACTED HOST>: No such host is known. 
abort: no suitable response from remote hg


remote: ssh: Could not resolve hostname <REDACTED HOST>: No such host is known. 
abort: no suitable response from remote hg

remote: ssh: Could not resolve hostname <REDACTED HOST>: No such host is known. 
abort: no suitable response from remote hg


remote: ssh: Could not resolve hostname <REDACTED HOST>: No such host is known. 
abort: no suitable response from remote hg

hg log -T json -r p1() + p2()
hg branch
hg status -C
hg log -T json -r p1() + p2()
hg cat <REDACTED MODIFIED FILENAME> -r .
hg branch
hg status -C

[ssg]

Additional note: A full hg log takes less than a second on this repository.

[ssg]

The tab icon looks like this too:

[PhoneixS]

This is also tracked on the Visual Studio Code repository in microsoft/vscode#234717 it happens with all extensions except the included for Git.