Thanks for your feedback.
If you still experience the problem in version 3.2.4 please contact us directly through the ‘Contact Support’ button here – http://support.termius.com/
Would be great if you can provide us with the auth logs as well.
An error occurred while saving the commentMike commented
This bug is still occurring every single day... Terminus 4.1.2, OS X High Sierra 10.13.6
"Work-around" is to edit the host, remove key, re-attach key... probably not worth subscribing until this bug is fixed.