Installed multiple slider modules. One with multiple slides and others with a single slide each. The slider with multiple slides works as expected however the sliders with single slide load the background images but the background quickly disappears to a white background leaving only the other layer elements. I have checked and double checked animations and general settings. I have set the background in Slider Settings>Appearance to "Show background image= yes", "Background URL=http://legacynext.com", "Fit=Cover", "Repeat=no-repeat", and "Position=center-center". Also in Slide List>Edit slide I have set "Slider Main Image/Background to "Image BG" with the appropriate slide chosen. The background image seems to appear when the page loads but disappears to a white background. This happens most on mobile devices. Please advise.