Copying Chain Lightning doesn't allow you to change targets.

[Kalioc]

What is the expected behaviour of the card?

• Copying Chain Lightning lets the target's controller choose new targets.

What is the actual behaviour of the card?

• Copying it forces the same target instead of allowing a new one.

Support Forum Thread
Forum Post: https://forums.mtgo.com/index.php?threads/chain-lightning-cant-change-target.932/

Screenshot

Please provide a list of affected cards
Affects: [Chain Lightning], [Chain of Plasma]

Card Images

[vorpal-buildbot]

Daybreak has labelled this bug as Confirmed

[bakert]

I think this affects Chain of Plasma too.