Memory Leak Issues 2026
Skoodicai
VRChat using absurd amount of RAM, more likely on longer sessions (around 2-4 hours).
I haven't played around with it too much to figure out things that could be causing it, but I have noticed that the longer the play session, the more likely it is to happen. Ends up using all of my available RAM, causing freezing and stuttering which can only be solved by restarting VRChat.
Does not reset on world/instance rejoin, or going to a new world.
I have noticed that RAM usage will be stable, then at some point, it just starts to pile on more and more.
ONLY happens on VRChat, every other VR application and non-VR application doesn't do this.
Don't know if the results are different on Desktop.
This has been happening for a while now and I first started noticing it with the release of the Lunar New Year items update. Maybe could be something that happened there?
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hdorriker
One of the most frequent accidental memory leaks in worlds is related to modifying “materials” on a renderer instead of “sharedMaterials”. This makes a new copy of the materials every time instead of using the existing (shared) material like it seems it would do. There may be a few prefab systems out there that are still doing this, since it can go unnoticed unless the materials are changed frequently enough for the creator to notice something is wrong in testing.
I have personally watched a scripted blinking light that was using ‘material’ instead of ‘sharedMaterial’ consume 24MB per second. Given how unintuitive this is (blame Unity for this one), I wouldnt be surprised if this is very widespread.