Plotlab 5.0.2 Waterfall Zoom issue

[NKoll]

Greetings together!

In the newest Plotlab release for .NET I have a problem with the zooming
function in the waterfall control.

It just does nothing when I try to select a area it should zoom into.

This also appears on different machines and after a clean install (of both the machine itself and Plotlab).

So my questions:

Is this a known bug / Are there people working on it / Can a Update be expected?

And if not: Is there a workaround?

Best regards

NKoll