Hello everyone, thank you for posting these questions.
When the crash occurs, were you able to see any errors? Checking your logs may provide a few clues to the crash. Logs can be found in the saved folder of your project.
In the meantime, there is an informative thread that talks quite a bit about troubleshooting the water plugin that may be of interest to you. cannasoftware has many strong talking points worth looking into.
I look forward to reading your reply.