i tried the latest boxcryptor version and have reinstall it several times, however i just cannot type password when i want to login, either online account or local account.
the screenshots are as follow:
you can see that the password are not masked with "*" but the real value, and when backspace, boxcryptor crash.
i had the same issue on all of my Win10 boxes, & i found uninstalling it completely, rebooting, & reinstalling was the only fix.
unfortunately, we can not reproduce this behaviour on our machines.
Please try asdfasdfs advice and completely uninstall, reboot and reinstall Boxcryptor.
If the problem persists please write to firstname.lastname@example.org