Recent Streaming Quality/Load-time Issues

Has StreamingEnabled or Terrain LOD changed in the past two weeks, possibly limited to mobile? I’m hearing reports from players that the quality of Terrain and its load times have dropped in the past few weeks. One recent post can be seen here though I don’t think the timing is accurate: 🌪TornadoPaul⛈️ 💙💜🎤 Ella Fella on X: "@asimo3089 is this terrain a roblox bug, why is it doing this at high graphics" / X

This can be problematic when driving at speed. It’s possible that not much has changed, or that the incoming Terrain performance improvements will remedy all of this.

Thank you.

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Thx for sharing. Just confirming, is that background model terrain or a model?

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We will investigate, If you know of a specific repro case in a place file where quality and/or load times have changed, it would be good to get those details along with an understanding if the place changed recently. Any additional information you have would be helpful. Thanks.

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Oh wow I hadn’t noticed that, but that’s a background model with the low-res mountain.

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Did anything get toggled today by chance? I opened a file that was slow to load terrain yesterday but was near-instant today.

I’m linking a video from Reddit of Terrain being slow to load 3 days ago. Players are saying it happened around the same time as the ongoing Roblox 20 event. I’m not sure the correlation. https://www.reddit.com/r/robloxjailbreak/comments/1wlpvxz/is_anyone_else_getting_these_terrain_glitches/

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This could be related to a new feature we are testing. I will disable the channel right now and you can let me know if it gets better. I have confirmed the channel would have affected Android users from 9/16 to the morning of 9/17. The channel was also active today. I’m not sure if that lines up with what you were seeing.

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I’m working with the twitter user I linked earlier. His username is FreddyTheUniqueBacon
He’s on a Samsung Galaxy Tab S11 and Samsung Galaxy S25+. He says both devices still exhibit the problem.

I’ve tried an iPhone 17 Pro and can’t reproduce the issue. I’m going to assume this is unique to android.

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Thank you for reaching out and providing the information.

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Oh, both me and my younger cousins noticed this while playing Roblox recently, Terrain has been rendering awfully. Now that staff brought it up, it’s likely they were publicly testing the new experimental Terrain features on some devices?

(It also seems to happen exclusively on mobile devices)

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In my Roblox game I am making there are lots of caves and you teleport to them, and it takes like 5-20 seconds to fully load the terrain. it’s quite bad right now…

The android user says it’s fixed:

Just tested an game on mobile i recall struggling from the issue alot, it appears to be completely fixed!

There was an experiment running, and it has completed. Thank you for making us aware of the performance issue.