X15 constant regen

I have a 2024 w900 with a cummins x15 565 hp engine with just over 235000 miles on it. So far I've had no issues whatsoever with anything engine related but recently it started acting like it was running regens more often, except I really don't think it is doin a regen. I get the higher idle, the added boost, and it only does it when the engine is not under a load, (like when I'm waiting at a stop sign, after I park somewhere it will do it for 2 minutes or so but then will idle normally) the high exhaust temperature light never comes on like it doesn't when it is normally running a regen cycle. It has no warnings or codeson the dash or that shows up on a computer. It used to do it occasionally but its getting pretty consistent now. I did do a forced regen and that didnt help. Anyone have any ideas or suggestions? Thanks

 

We have 2 trucks filling out of the same def tank and the other truck isnt having any issues. I cant seem to find any exhaust leaks and I dont think the filter is getting plugged because when plugged into the computer the sensors arent showing a restriction.