Impress Objects Disappear after Appear animation

In an impress slide I add an animation for an object to appear when clicking on a second object. When you run the presentation it works and the object appears, for a second, then disappears again straight away. It will keep appearing every time you click, but I just want it to appear and stay there. I have it set to not dim after animation but it just disappears straight away. How do I get it to appear when I click on a second object and then stay there afterwards?

I observe this effect and would suggest this is a bug. If you select ‘hide on next animation’ it no longer disappears. (However, I don’t entirely understand how to use this feature.)
Ubuntu 18.04 LO 6.3.4.2

I am experiencing the same problem in LO 7, using Manjaro Linux.