Only Spawnables playback in Sequences in levels created via Create Instance

This bug is a bit of an edge case but I think it’s worth pointing out.

Issue

Only actors set to spawnable in Sequences play back in Levels created via “Create Instance”. It seems like the references are being broken between the actors in the level and the sequence.

Reproduction Steps

  1. Create a persistent map.
  2. Create a sub-map and add it to the persistent map
  3. Create a Level Sequence in the sub-map.
  4. In Sequence: Add a Cube, make it spawnable, and have it move up and down.
  5. In Sequence: Create a Sphere, DO NOT MAKE IT SPAWNABLE, make it move up and down.
  6. Set the Sequence to Autoplay.
  7. Save sub map.
  8. In the persistent level add to the level blueprint code below. The sub-level has an instance created dynamically and is loaded into the world and set as visible.

Results

###Expected
The sequence should play back showing both the cube and sphere moving up and down.

###Acutal
The sequence only plays back the cube, the sphere does not move. Only the spawnable actor is behaving as expected.

Hello Mercurial Forge,

I have reproduced what I believe may be the same result on our end. However, I wanted to ask for clarification. After following the reproduction steps provided. My sphere does not show up at all when playing in editor. Is this the issue that you are seeing on your end?

Hello Mercurial Forge,

We have not heard back from you in a few days, so we are marking this post as Resolved for tracking purposes. If you are still experiencing the issue you reported, please respond to this message with additional information and we will follow up.

Thanks,

Sorry for the delay. The sphere was visible in my case, it just wouldn’t playback. As not it was performed in 4.12.4.

Would it be possible for you to provide a sample project that reproduces this issue so that I can see where are projects are different and so that I could take a closer look?

Here is the project. I’ve recently updated to 4.12.5 and now the Spawnable actor doesn’t even appear as you mentioned. I’m not sure if this a result of the upgrade but at least we are seeing the same result!

Project Example

Hello Mercurial Forge,

After further testing I was able to reproduce this issue on our end. I have written up a report ( UE-33230) and I have submitted it to the developers for further consideration. I will provide updates with any pertinent information as it becomes available. Thank you for your time and information.

Make it a great day