[HELP]Why does the minimap icon flicker constantly？

[Steve_Zhang]

As the title says, the icon stops flickering when the player moves far away, but when the player is nearby, the icon flickers constantly. Why is that? How can I stop the icon from flickering?

Additionally, my image size is 64x64, and it's only 6KB.

Below is my code:

GLOBAL.setmetatable(env, { __index = function(t, k) return GLOBAL.rawget(GLOBAL, k) end })

Assets = {
    Asset("ATLAS", "images/icon_test.xml"),
}
AddMinimapAtlas("images/icon_test.xml")

AddSimPostInit(function()
    TheInput:AddKeyHandler(function(key, down)
        if TheWorld.ismastersim then return end
        if down and key == KEY_V then
            local mark = CreateEntity()
            mark.entity:AddTransform()
            mark.Transform:SetPosition(ConsoleWorldPosition():Get())
          
            mark.entity:AddMiniMapEntity()
            mark.MiniMapEntity:SetIcon("icon_test.tex")
            mark.MiniMapEntity:SetPriority(10)
        end
    end)
end)