Bounding box collision issues

I'm going to use the gear forge as an example since I ran into the issue with these blocks. While attempting to place down several blocks to build out my first production area, I ran into an issue with the bounding boxes of these blocks. Each light armor block I'm using is 2.5m cubed and the gear forge is also 2.5m cubed. I've attached images to better visually represent my problem. I'm not able to attached the gear forge to the conveyor without removing the bottom block. Since both of these blocks visually do not intersect, no collision should occur. After further fiddling with the blocks, I've noticed while placing the same blocks side by side, it works just fine if placed directly on the armor blocks instead of connected to the conveyor system.

After further testing (in the middle of writing this post), I've discovered this whole system is a separate grid when I assumed it was part of the Barn's local grid similar to how SE1s local grid system worked. I can fix the problem from this point but as a point of contention, this is a problem. I just wanted a connector flush with the floor. I'm finishing this post and leaving it up in case anyone else has a similar issue. As someone with 3.5k hours in SE1, I don't enjoy the new grid system.