[Solved] Get block and set location not working properly

I have a procedure to check what the block below. Here is it. It very rarely works, maybe only 10% of the time. The block I'm checking is a custom block with a custom 3d model. I don't know how to fix this. The second situation is this one. With these 2 blocks I am teleporting the player above to where the block was placed but once again, it rarely works. Most of the time the player is placed next to the block in a random position not above it. If someone knew how to fix this I'd greatly appreciate it if you could share it.

EDIT: For anyone who sees this and is having the same as me. It's just how it is. Block detection doesn't work very well mc. You're going to have to find a workaround.