Any idea on why it's giving an error Insufficient Privileges when I'm trying to import a key store (exported from another sandbox) ?
Importing/Exporting it as an System Admin, with or without password, it doesn't change the result
I had similar issues, opened a case and here is the answer:
our R&D team has confirmed this is unexpected behavior and we have logged an internal issue record to address your case. I have marked your case as dependent on our internal issue.However we have a workaround in Lightning Experience by following steps:
Goto setup --> quick find --> look for certifcate and key managements Click on the button "Export to keystore" --> do not provide any password and click on Export --> The file is downloaded.
Or switch to classic and then try to Export using Keystore password.