Small hesitation at frwy speed on ISX CM871

[Dieselboy]

So I have a 2008 ISX CM871 in my motorhome with a slight hesitation (like sub 1 second) today while driving at about 65mph on the freeway. Was fine for the first 4 hours of the drive then on a very slight uphill it hesitated about 5 times within about 45 min. No CEL. No Allison transmission error either. Everything else is fine like temps and pressures.

Cruise control was on while this took place. I proceed to drive for another 35 min without cruise control, it does it one more time but less pronounced. Motor pulls fine from a stop and runs through gears just fine as well.

I might add that I've replaced fuel filters about 7k miles ago.

Very odd to me. Any thoughts?

And thanks!