Although that same password does work for when I log in to my account directly from the web.
In Kyma, when I click "Forgot Password", it then just brings me back to the same regular login box, waiting for me to input my password again. I haven't seen any new emails about changing my password.
I found a previous thread here, titled "password not accepted", from Feb., but I didn't see a solution I could follow, just a few comments saying it was fixed.
I'm currently running Kyma release 7.20f9 (5 December 2017) on macOS 10.13.4