I believe that the current HFOV for Ashe is wrong, I know that there was a reddit thread that said Ashe's FOV is 66 degrees but it was later edited after another user calculated it to 65.8 degrees :
There is also a change to the way Widowmaker and Ana's scoped FOV is calculated: https://www.reddit.com/r/Competitiveoverwatch/comments/9ujb0i/widowmakers_and_anas_fov_has_changed/
I hope the issues can be fixed.
Thanks.