Regarding Roblox Core UI's disappearing when you move your camera a certain angle

Hello, recently me and a few other devs have come to realisation that there is a Roblox Core UI glitch, if you move your camera ever so slightly to the left, ALL of the UI’s will disappear.

This usually happens when the server is one hour+, I’m not 100% sure if there is a meaning behind it, but some games are losing players from it.

Game it’s happening in (For me at least,)

https://www.roblox.com/games/2876730587/AMBULANCES-Riverside-Prison-V2-Beta

We also got one of the staff members to send us the proof, just so we know It’s not happening to 1-2 people, this is interfering with the entire community.

Proof: https://gyazo.com/84c3e9e41027dcccdb7d23ca15d016bb

Thank you.

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That’s some pretty high memory usage. I think that would be the issue - maybe your memory is being depleted so it has none left to render the core UI? That would be some really extreme memory usage tho.

It seems not to be the case, Our memory average is about 1000kb, Something that any device that Roblox supports can easily run.

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This happens to me if I spam tons of parts or tons of ScreenGUIs, all of the CoreGui will dissapear. Something similar may be happening here, perhaps too many parts?

It may help to turn on StreamingEnabled, however it could break some local scripts.

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Our game is not resource intensive part-count wise. And even if it is, There are much larger games around.

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You can try turning on StreamingEnabled, and see if it helps.

We already did turn Streaming on with no help on this issue.

I’m not sure then, I don’t get that issue on your game.
I did notice, however, your memory usage is considerably higher than other games.
I was almost at 1gb memory usage, however when on other games such as MeepCity, I only get 300.

Can you tell us how much ram you have?

I currently have 8gb of RAM on my computer. It usually happens to all players in old servers.

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Do you create new parts slowly? Such as cars that don’t despawn, guns, crates, etc?
It may just use a massive amount of memory slowly over time (which would cause this)

It’s hard to say without being able to check.

Are you sure it’s the memory? As I don’t lag in game or anything and there are bigger games with more memory usage, plus it’s only when the camera is in a certain angle as shown in the video.

It might not be, however I don’t know when it happens, you say servers that are over an hour old, and I can’t really check. The only times I’ve ever had this happen was when I looked at a lot of parts or had tons of guis on screen.

This seems like a problem with a memory leak. You may be storing items that a do not get picked up by lua’s garbage collection somewhere.

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When ever I try to assist on a thread somebody already beat me to it, in this case Timothy :joy:

But yeah, that’d explain why it occurs after the first hour or so, because of ever-increasing memory usage.

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If what you’re trying to do is report a bug, this is perhaps something that you need to post in the Platform Feedback category and not in Scripting Support. Before you do that, you need to confirm whether this is an actual bug or only something with your game.

In regards to posting in that category, the New Member FAQ should have the information you require.

I joined a random server and saw over 900 guis or humanoid names. What are all of these? I was spending 15ms each frame just rendering guis. If these are BillboardGuis, I recommend using BillboardGui.MaxDistance to avoid unnecessarily rendering them when far away. That should significantly improve the game’s performance, and may fix the issue you’re reporting.

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From looking closer into the game, I can speculate you have many problems on your game or certain problems that can be a hassle.


As seen in this image above, the game has many errors. Even when staying in the game longer, the errors stack up rapidly due to players using the weapons constantly firing off errors once in a while…

The menu also seems to be bugged out (Hence why the menu looks so odd) and the client memory is abnormally high as @Elttob stated.

From what I can see, it is probably a data leak thats happening because of players firing off the weapons.
This could cause alot of performance issues and rendering issues if left and could cause players to lag heavily overtime or make it near unplayable for mobile players.

Edit: From what I’ve seen when loading into the game, the game uses a large amount of Roblox Terrain, what you should do to make sure its performance friendly for all users is to cut down the polys in the terrarin and use LOD to decrease the amount of parts shown to the person. This could heavily cut down lag and performance problems based on how large your map is.

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I hate to bump an old topic, but there’s a common problem that may cause this.

BillboardGuis, when their adornee is Destroyed but not themselves, can be the cause of a massive memory leak.

Make sure you’ve destroyed your BillboardGuis when you’re done with them!

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