Experiencing the same issue. It seems as if my ships are going across 100% wind on calm water and vice versa.

Experiencing a similar issue on a Server, boats are submarines when they shouldn't be...

Thank you for report. Wasn't that fixed in v1.6.3? https://geometa.co.uk/support/stormworks/9848

When we host a game and join as client the waves are synced just fine. Can you please find a way to reproduce this issue and leave steps here?

Hi! no I think that patch didn't fix it since we are seeing it again. (We recently started another playthrough after a break). I think it take a while for it to happen, we are hosting a server on low.ms and at first it was fine but now it is desynched, also after server restarts or relogging.

If it is just waiting to reproduce it it may be hard to find a way to force it. Are you starting the server on the same network as your client? that may explain why it isn't happening since I saw some packet loss as well and can imagine that the comms between server and client are very reliable on the same network.

Would it be an idea that we host a dev server for you and let you know when it happens so you can check it out?

If you can also de debugging on a normal server you are also welcome to come and have a look, if that works at all.

When it starts happening on server then it will be always reproducible for every client right after join?

While doing some more testing to give a difinitive answer we noticed some more things:

• Yes every client experiences the same desync. We tested it with streaming eachothers screens and the boat did the same exact wrong motions. So it seems that the server is sending the wrong info to all clients consistently. Best noticeable when it is windy.
• We notice that when we visually see a storm at the start the ship motion is too calm and when the storm has passed the violent motions last too long. So the physics seem to be behind the visuals.
• It also happens when you override the weather or the wind direction separately. Overriding the wind direction sometimes also takes a while, maybe that's related.
• When we override BOTH the weather and the wind direction the issue seems to stop or get a lot better. We didn't ovbserve it gradually getting worse but we were only able to test this for a few minutes. So it seemed to stay synced but we will test longer.
• We did observe some stuttering wave visuals like we had low FPS, but we checked and didn't. Also in the F1 menu both wave physics and the other one were at 62fps and a lot idle room.

To summarize we could reproduce it on our server by logging in and setting some wind if there was none.

Even if that server is a just created world?

It does seem that this has been an issue for at least four years, as I can find old Reddit posts about this exact same issue dating back to 2019. I'm hosting a dedicated server, and basically at start-up, the waves become completely desynced from all clients. They never reconnect, as if the server continuously sends bad data to all clients.

It didn't start immediately but pretty soon in. I cannot remember if this was after an hour or a day sadly, but not much more..

To add to what trinity says, once it starts it won't get resolved for that seed until you rebuild the entire world.

or rather I didn't start looking for it right away. It may have been the first storm when I noticed and it may have been there from the start.

Ok, reopened old issue and linked.