Multiple Pontoon on Buoyancy not working

Hi, I recently installed Unreal Engine 4.26 and tried to use the new water volumes with buoyancy and for some reason as soon as I add more than one pontoon, the buoyancy seems to no longer apply.

Is there something that I am missing for it to work?

I tried copying the exact testing tube from water volumes and it does the same. If I add another pontoon it sinks instantly and does not even get affected by the water in any way.

Edit:
Apparently if I turn the boat upside down it works now?