I have the same problem since january 26 : hub do not receive yahoo mail, be it on my priv, my classic, or a BB hub+ app installed on an Android 9 based device...
Here is a solution as I just added yahoo mail to both android hub and bb10 hub:
In yahoo
Click settings > Click account info > Click Account Security > Under two step verification, click Manage App passwords > Then in the pop up dropdown, select "other" app > name the app > click done and a password will be generated > enter that password into your devise where you would enter the password . This will complete the setup
Here is a solution as I just added yahoo mail to both android hub and bb10 hub:
In yahoo
Click settings > Click account info > Click Account Security > Under two step verification, click Manage App passwords > Then in the pop up dropdown, select "other" app > name the app > click done and a password will be generated > enter that password into your devise where you would enter the password . This will complete the setup
Thank you .... Works now :-) .... So much for keeping things simple Yahoo!!!
Here is a solution as I just added yahoo mail to both android hub and bb10 hub:
In yahoo
Click settings > Click account info > Click Account Security > Under two step verification, click Manage App passwords > Then in the pop up dropdown, select "other" app > name the app > click done and a password will be generated > enter that password into your devise where you would enter the password . This will complete the setup
Mine happened this morning. Thanks for the steps above. It's back on.