Problem with Wetmap

I have a problem with the wetmap of a canvas vertexcolor node/dot.

Always when i reopen my scene the connections of the wetmap data are separated.

Why this is happening?

Is this a bug?

Make sure your mesh data includes a corresponding vertex group of the correct name. Adding a dynamic paint canvas fills in default names for the vertex groups but it doesn’t actually create those groups. You need to do that yourself.

Ok i will try. Thank you.

It is an ocean simulation btw.

Maybe thats the problem?

It still does not work!

That’s the only guess I can make without seeing the file.

I will try to upload it on Blendswap. would be a better choice.