I use a champed Star-Lord quite frequently (used him a bunch last night and this morning) and haven’t seen this.
One note: were there any available yellow tiles when the enemy fired off their power? If you’re playing against Maggia thugs, they end up using a lot of yellow tiles for their countdowns (plus the Muscle uses them for strikes and the Hitman randomly destroys them)… so I’ve found in those battles there sometimes isn’t a basic yellow tile for Star-Lord to convert.