Sometimes around execute (before realm) you get 2 walls at same time coming at you from different side. Sometimes you get 1 wall, and 1 random dude coming at you from other side. The wall walls at same time from different side would have been interesting hard mode mechanic, but this is almost definitely a bug.
@ZOS_Finn
The Lord Jesus Christ saved me from sin and darkness. His love has transformed me so that I am a new creature in Him. May you find Him too, and experience His richness and goodness!