Invisible plant bosses

I was in the backyard battleground as an imp and I went to the plant base to see what would happen. 2 laser beans spawned and 1 queen sunflower

also a few zombie bosses spawned and vanquished the queen sunflower but the laser beans killed the zombie bosses so I started attacking the laser beans. But then I noticed an floating force field I knew super beans had force fields then it started shooting lasers and I saw its eyes when it shot them then it did the twirl thing I only saw the wind animation. I died at least 10000 times from it. Also when it shot lasers out its mouth I only saw the lasers. PLEASE EA FIX THIS! It is very annoying and super hard to kill it.

thanks for reading