Don't forget 10.10.5 users. (:
But I'm still grateful for the attention this issue is receiving.
i am on mac version 10.10.5 and i have this same issue as well. This happened a few weeks before, and i waited a couple of days and i could log in like usual. Now it's happening again.
Edit- there is no way for me to update version so I'm hoping it will be rectified with 10.10.5 also
Just logged in for the first time in a couple weeks. I got the new minecraft update and now the issue is fixed! I am on mac 10.10.5