WRONG Default email address when sending email.
Enthusiast - Level 2

recently i noticed that when i send email verizon/yahoo email is using the wrong address as sender.

I selected a default email address to be used when sending email.

when i send an email verizon yahoo email will not use the correct default email i want unless i click the drop down menu

and select it manually every time.

i have gone to settings > accounts> email > Default sending account   and chosen the email address i want to use.

i have saved it.

when i send another email address it reverts back to the wrong address and i have click the drop down menu and select

the correct default address again.

anyone have a solution??