Detectors with IDs not associating with objects

I have a pushable block in a platformer with 2 detectors, one on the left and one on the right.

I tried spread value 0 in ID for the block and both detectors, and then set the positions when ID("Detector") = ID("Block").

For collisions I put the same ID conditions and have the block move with the player.

For some reason only one of the blocks works however, all the other blocks can't be pushed and when I push the one working block all the other blocks move.

Can someone help me with this? Do I have to use fastloops, and how would I use them in this way?

This is my code without the ID bits, and works with just one block:

https://i.imgur.com/kqyFR8k.png

UPDATE:

I think I've improved it a little, though there are still problems.

I've now got a fastloop which activates every frame, and loops as many times as there are blocks in the game.

I then have a condition; On loop "blockloop", and if ID("Block") = loopindex("blockloop") and ID("Detector") = loopindex("blockloop") [and then the rest of the conditions follow], then [event to push block].

I thought for certain this would fix the issue, but not quite. Still only one block works. The other blocks don't all move at the same time like last time, but now they just stay completely still and can't be interacted with.

Any help?

Put up an example, it’s much easier to tackle and play with ��