Models in the game quickly flicker in and out of existence

The issue replicates on multiple devices by multiple people, both in game and studio
It doesn’t happen all the time, nor for everybody.

rarity: occasional, under high stress

it doesn’t happen reliably every game session even under stress test, but when it happens it doesn’t stop.
for me it happens with about a 30% chance, and only when there are a lot of units / models present and active.

What have we tried?
-Disable streaming enabled - no change.

Are models created on client side?
-Not all of them, you can see buildings flicker too, and they are created on server side. Trees as well. Units are client side.

Could this be a script doing this?
-No. Units are moved by a script via cframe BulkMove, but buildings and decorations can’t be affected in any way. We send a list of models to move, we checked it, it works as intended.

Anything you can add?
-We are pushing the engine to its limits with our advanced npc system, on my average pc, our game can handle several thousands units.
How?
No humanoids, using a mesh model with different painted textures.
Client side rendering the units, only unit classes on server.
Anchored npcs, using BulkMove for movement.

If there is anything I can do to fix this on my side please let me know, if not, I pray this issue will be solved on your side.

Expected behavior

models would not be blinking and making me feel sick :smiling_face_with_tear: