The block and item Transposer was removed with nothing to replace it to move items off of a moving structure. If there is something that replaced it or something else please tell me what it is before this is removed. I'm using 1.15.2 v0.3a

This has been brought up a few times I think. To quote a reply to #569:
You can use Belt Funnels, Tunnels, and Chutes to do better what they did.

I'm not sure I agree, but hey, this is all early stuff that's likely to change.

In order to move items off of a moving contraption you need a second Portable Storage Interface that isn't attached to the contraption and something to extract the items from the static PSI.

This is not a bug but a feature.

I was able to create (pun intended) a similar contraption but it is much larger now due to funnels not working as a functional replacement for the transposer. Take a look at this picture and see if you can figure out a better way to do this.

https://imgur.com/a/L9bga7j