Hi,
Well try
;In ConsoleVariables.ini in C:\Program Files\Epic Games\UE_5.3\Engine\Config
;Set values here for every project or follow instructions given in In ConsoleVariables.ini
;[/Script/Engine.RendererSettings] in my project
r.Nanite.AllowTessellation=1
r.Nanite.Tessellation=1
; Other way to set cvars:
; in engine ini files (e.g. BaseEngine.ini,
; Project Settings DefaultEngine.ini) in the [SystemSettings] section
; Uncomment to get detailed logs on shader compiles and the opportunity to retry on errors
Pleas note Yours has a syntax error using a space instead of = as in my example above
If you are trying to disable use 0 but you need to restart the UE project