Problem with my blueprint about Overlapping for my dungeon

I’ve been running on a problem for 4 hours. I was following a tutorial about the procedural generation of a dungeon How To Create Epic Procedural Dungeons In Unreal Engine 5 - Part 1

The problem is that, when I was following the tutorial about the overlapping, the person behind the tutorial didn’t run into a problem at 1:07:17 but for me, I’ve been blocked.

If you want the files, I’l give you, no problem