Unfortunately there’s just not enough information there to diagnose remotely.
I can see you’re using a lot of custom collision responses and presets, while nothing is immediately jumping out at me, this would be the most likely culprit, and where I would start if I was trying to debug it. Maybe try recreating a very small version of this in a clean project without any custom responses and see if you get the same problem?
Try having a look through some videos like this and seeing if there is anything that you are doing in your custom setup that could be causing issues.
Good luck and hopefully it’s just some simple overlooked thing.