Image sequence of dynamic paint's waves - problem

Hi. I tried to create waves after raindrop splashes. I wanted to do it as OpenEXR image files, because pngs give poor effect (the render with pngs):

with these nodes:

There is high value at multiply, otherwise nothing is visible. Settings are like this:

The render with OpenEXRs (also poor):

With EXRs every frame looks the same, like above.

Both methods don’t work. The ground plane is unwrapped, raindrops are correctly baked. In the same file i managed successfully to create a raindrop marks with glass/water shader, why do waves don’t work?

It’s solved already. The files’ path had native letters in it.