Split screen spawn rate

So I play with my girlfriend split screen on Xbox. Until the last update it was challenging for both of us. I’ve recently completed my single player campaign and reached level 50 with my zane.

It seams like since the latest update when I join her game we are not getting any extra enemies to spawn, just the normal single player amount. They are scaling correctly to my level, but I’m basically forced to dance around them and throw my barrier down and not shoot them so that my girlfriend has enough challenge to have fun. Before the patch we were both getting overwhelmed with baddies and having to retreat, which made it fun for both of us.

Has anyone else noticed this problem?