@pedro.oliveirasilva i am just another user, so take my input as a grain of salt.
which OV app are using? it been mentioned by the mods in other thread that Composer is more robust with rendering than, say, Isaac Sim:
so it would be great if you could confirm on your end
also, what renderer are you using (RTX-realtime or RTX-interactive)? would it be possible to show your render settings?