Hmmm… I had a different issue yesterday that I finally figured out was due to ‘world bounds’ being active. My character was refusing to spawn regardless of where I placed Player Start on the landscape. Since the player bounds option was selected, UE refused to spawn the character anywhere that was beyond its scope of where the bounds should be
I wonder if this is affecting the water system. Not that I can turn world bounds on or off to correct this issue, but that the landscape is so far below where UE thinks the boundaries should be that it is refusing to allow the feature to work correctly.
I think I’ll create a new project and import my landscape. Instead of lowering the player to where the landscape spawns, I’ll move the landscape UP to where the default player spawns, then try the river system. It’s literally the only thing I can think of that is causing this issue.
I’ll get back to you soon with the results (if any)