Slides with a material container last minimum of 10 seconds with Runtime 1.x viewer

Materials can't have endtimes in the editor. The endtime property is not saved to the .uip file. This means that the material container that itself is a Material object This doesn't affect Runtime 2.x, but Runtime 1.x viewer plays the slide for 10 seconds even if other objects have shorter lifetimes.

Either the editor has to save the endtimes to the .uip file or the Runtime 1.x has to ignore material lifetimes.