JIRA Core account 'already linked' when correcting OAuth as prompted

[Stuart May]

A Page and Issue are linked on JIRA Core and Confluence, but the link fails to work. 

I am prompted to correct OAuth Config Error.

I correct the OAuth so they match (arrows are green) and try to save the changes.

The page fails to Save due to the account 'already having a link'... the JIRA Cloud Application link & address is highlighted red. 

I can't find anyway round it and only one instance of each Application so no idea how they could be linked any other way.

thanks

[Boris Berenberg - Atlas Authority]

Go into your profile and remove the oauth connection from there. I think that may work around this.

[Stuart May]

Thanks... I get this in JIRA Core:

Authorised Applications

No applications are using your account to access JIRA data

...and this in Confluence:

Authorised Applications

The following applications are using your account to access Confluence data

No applications are authorised

Can't say I understand the implications of either!