Adding a second Advanced Action to an object changes the behavior of the first AA

Hi!

First time posting here. I'm building an activity where the learner can flip images of pages in a report by clicking back and next arrows. The next arrow executes an advanced action to collapse the page left. The back arrow is supposed to bring the page back. I've tried using the "Show" command, but that doesn't work at all. I can apply an entrance effect and that brings the page back (no flipping, but that's okay), but then a weird thing happens: my original collapse left effect changes behavior. Instead of collapsing like a normal page turn with the right edge moving and the left edge staying fixed, the page flips from the center, even though I've done nothing to change the Advanced Action.

I'm not sure which parts of my work to show here to help. Here are images of the two Advanced Actions: