Xbox One X Auto Shutdown?overheating message #Fornite Only

My Xbox One X Occasionally auto shuts down and when rebooted gives the overheating warning..........Now I can play apex legends for 5 hours straight with no issues my son plays Fortnite for 30mins and it shuts down and this was from a cold startup first
thing in the morning It only seems to happen with Fortnite, I also play COD Warzone with no issues oh and the internal fan is working and I have also cleared the dust!. anyone else experiencing these issues?

:)