input of the old password led to the spinning bear earlier on a non-logged in browser, while the same old password was successful when confirming a new password change in settings on a different browser where I am logged on to the website, it's not the old password itself that's an issue but something that has to be with the process of logging in, else I would not have been able to change my password on the browser I'm still logged in on
if you can still reproduce the problem on that other browser I'd check for things like cookies and cached service workers and stuff... (if it's firefox, ctrl-shift-e and then go to the storage tab to look at cookies. Things like the domain, expiration date, and settings like httponly, secure, samesite should be innocuous to share but potentially useful to infer if it's an old stuck cookie, or using the wrong domain, etc)
input of the old password led to the spinning bear earlier on a non-logged in browser, while the same old password was successful when confirming a new password change in settings on a different browser where I am logged on to the website, it's not the old password itself that's an issue but something that has to be with the process of logging in, else I would not have been able to change my password on the browser I'm still logged in on
ohhhh gotcha
if you can still reproduce the problem on that other browser I'd check for things like cookies and cached service workers and stuff... (if it's firefox, ctrl-shift-e and then go to the storage tab to look at cookies. Things like the domain, expiration date, and settings like httponly, secure, samesite should be innocuous to share but potentially useful to infer if it's an old stuck cookie, or using the wrong domain, etc)