Slider with label left does not work properly.

[keinstein]

Hi, with my git build I have strange behaviour on Linux with uiSlider. When the label shall be left, only the label is shown the slider is hidden until some strange things happen (moving the slider around, klicking it in the editor). When it is visible it works in the editor mode. But in the release mode of the panel the slider is inaccessible.
slider-error.panel.gz