Hey there!
Please refrain from necro’ing posts (reacting to really old posts).
Also these discussion threads belong to #general-discussion.
You probably are a console player since i don’t see you’ve got your account linked up yet.
You can read this Article for more information about this subject.
When the account is linked i’d recommend you to relog on the account so the changes can be applied.
Bastion is the base of a bunker comp, without the setup of a bunker bastion can usually still be DMG boosted or just protected by shields.
This is of course easy to counter by swithing the comp, and this is fairly normal for this game. It all relies on the current heros you are playing with.
Usually high mobility and fast moving targets can work against Bastion.