Hm, the Sea Surf blueprints still act kinda strange (even after adjusting the audio level for the large one). After some more testing, they seem to work at least sometimes AFTER running the Test module option in-game and then in the toolset as well. But if I deactivate and then reactivate the Play placed sound objects in area option, they stop working again. Very strange indeed.
The area wide sounds like this fail to play in toolset quite often and then works when i alttab and then stop working again... I dont know. I dont really think its a specific blueprint issue, i compared the blueprints and the only differences were volume in the surf large and variation in surf small. Also when I opened the soundws in Audacity I havent seen any change over to other similar sounds, channels, frequence everything matched. So I think this might be somewhere else
Regarding the rain sounds, if you want the blueprints to function again, why not just put the rain wav files into your patch haks?
Indeed that worked. I was thinking about removing these sounds, but in the end fixing them brings more possibilities despite they probably werent intented to be used this way in the first place.