I having an issue will spawning multiple floor tiles for the endless runner tutorial. I keep getting a warning that says I don't need the "CastToBP_Floortile". Please help

Delete the Cast to FloorTile node. You don’t need it. From the result of Spawn FloorTile connect to target of Get Attach Transform.

I removed it but the issue now is trying to spawn multiple floor tiles, which isn’t happening

The things that are circles in red, what exactly are those actions?