Random mesh components with prefabs are just randomly disappearing. It’s not consistent and doesn’t always happen to the same meshes.
Creative
Assets
Have a lot of prefabs in game
Hit Play
See and Interact with all meshes
Random meshes missing and glitchy
windows
Hi @TomJank 
The team is taking a look.
In my tests, the mesh disappeared based on the proximity. If the player respawned / died near the mesh, it stays, but if it happened at longer distance to that mesh, it disappeared.
FORT-989912 has been ‘Closed’ as a duplicate of an existing known issue.
Don’t let that scare you, we’re digging in here.
Here is our internal ticket for this: UE-226428
I’ve found a few things related to that problem.
We know that pre-placed entities (prefab or normal) should never distance cull. That’s been shared by an Epic staff here on the forums and I personally rely my project on that for my Mega Grants project.
Here are two scenarios that can be reliably reproduced in-game.
Preparation:
A)
B) [Does not always happen, but works some times]
Broke our whole map, please fix ASAP
Has also completely broken our map 6872-6995-0659
In my tests they’re disappearing in my area of respawning.
Haven’t tried dying near the mesh though, will try.
Been having this issue since the last couple of releases btw.
Someone figured out a temporary workaround for entities that really need a quick patch in the meantime.
If you have an @editable reference to an entity / prefab set in your editor maintained entity components, it will still distance cull, but it won’t disappear when the player comes back to it, even after respawning.
To collect a list of references such as for @editable List: []entity I created a little HTML tool that parses copied entity list from the outliner. You are required to fill the string_to_insert with the correct level reference (including a trailing dot) to make the generated lists have a valid format.
DISCLAIMER:
I will not provide support for this tool nor do I guarantee any future maintenance of that tool. Anyone is free to copy and fix it for their needs as it might not handle every edge case.
Here’s the link to the repo:
https://github.com/vz-creates/uefn-tools
Here’s an example image:
Enjoy 
Thanks that was me, I was waiting for more people to test it before sharing more widely but here we go haha. It says my video is too big to upload but it seems when you add an entity as an editable it somehow forces it to stay rendered. Thank you for making the tool to make it easier to make my array!
