Some elements not appearing in prototype mode

Hello @Leif_Shantz
It looks like your elements are not in the frame but over it.
If you take a look on your treeview (right panel) you can see that Group 50 is a the root of the page and is not insereted into Slide 16:9 - 12.
Prototype only show what inside the frame you launched, as explain below:

• rectangle 66 and text are inside screen frame so they show on prototype
  
  

• rectangle 66 and text are outside screen frame and thus do not display on prototype
  
  

Hope it helped.

Thank you! You’re very helpful!
Also, I am wondering how do I change the Slide default from a frame to another? Like I want the Flow/Slide to go from up and down, not left to right.

To edit your flow you want to change from Design panel to Prototype panel (either press shift+E or click on the word prototype on the top right panel)

From there you’ll be able to connect Frames to each other so you can be in total control of your flow (you can read more here Guide to prototyping in Figma)

Like Harroll said, you can either go into prototype mode and connect the slides so you have full control, or you can reorder your slides.

Figma goes from top-left towards the right and then to the top frame in the second row unless you connect the slides with actions.

🔲 ➡️ 🔲 ➡️ 🔲 ↘️
⬇️ ⬅️ ⬅️ ⬅️ ⬅️ ↙️
↘️ 🔲 ➡️🔲 ➡️ 🔲

Simply deleting and adding back the element (CMD+Z) made the items appear in the prototype for me…

So many items were missing from the prototype despite everything being inside frames. But deleting the element and then undo-ing it worked for me