Fights Auto-block shouldn't activate if you have unflinching.

[Annie enjoyer]

That's redundant, both are ignored for dead eye, so auto-block works more like a debuff stopping your attack.

 

[SvenZ]

You ignore potential damage however, while with Unflinching you still take the full attack

 

[Annie enjoyer]

You ignore potential damage however, while with Unflinching you still take the full attack

Block usually makes you get more damage via bb3, and you can't get final stand by trauma center.
Once auto blocked, you can't stop blocking.

And the point of unflinch is attack.
At the end, both can't work at the same time, in any case.