Blueprint error on my platform waypoint system

Development Programming & Scripting
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1

Hi, I am creating a platform obstacle in Unreal Engine 5. There will be a full video linked to this post where you can see this in action.

This is a platform that can move to waypoints. Each instance of the actor lets you choose a static mesh, its material instance, and a set of waypoints from the level.

When I simulate or play my game, the platform moves to the first waypoint just fine. Then, it breaks and gets worse; The trajectory is all wrong.

I also get errors when the platform reaches the third waypoint.

Please take a look at the full video, where I lead you through the setup, the simulation and the errors.

I would love to know what I am doing wrong, and what I can do/learn to fix my error. If my presentation of the problem can be improved, or if I need to post anything else, please let me know! I am new to Unreal Engine and posting problems in general.

Video is unlisted here: https://www.youtube.com/watch?v=9Z49Dm5pazk

Thank you to anyone who takes the time to read and contribute :slight_smile:

Edit: I have added blueprint screenshots in replies

2

Platform_EventGraph
Platform_EventGraph2842×662 161 KB

This is the platform event graph

3

Platform_ConstructionScript
Platform_ConstructionScript1015×686 56 KB

This is the platform construction script

4

This is the function used to get the relative transform from the platforms current location and the desired waypoint.

function_waypointsGetRelativeTransform
function_waypointsGetRelativeTransform2576×646 133 KB

5

function_waypointsGetDesiredWaypoint
function_waypointsGetDesiredWaypoint1625×684 99.9 KB

This is the function to get the desired waypoint.

6

I am not really sure what you are doing. But if it helps, I can show you a simple way I accomplished the same thing. I used an array to store the nav points and I just indexed through the array until I reached the end then I restarted the process to the beginning.
the process over.
Note: you may want to replace the delay with a timer.
Note: I added a “nav mesh bound volume” to the scene to use AI.