Found a workaround that fixes this bug. Downclocking the gpu worked for rtx 2080ti. Set around 1700-1750 mhz.
When environment is normal:
when spiking water level glitch occurs:
Water is glitching. Glitch occurs as sudden spikes in water level, also lifting the ships up. I have rtx 2080 ti and latest driver is downloaded. Any idea how to fix it, staying near the coast is troublesome.