Need some help guys.

[Fusion Training Systems]

I have a 24 GT 10R80 with 20k miles on it.
Bone stock.

Car has ran perfect.

Then starting last week no matter which drive mode I’m in, when shifting from 4th to 5th it does this odd quick shift into 5th and very out of place.

And it almost feels like the breaks hit for a split second but they don’t.

So hard to explain.

And it doesn’t do it every single time but since last week I’d say 50% of the time.

So I took it into the Ford dealership yesterday morning, and they called me today and said they couldn’t repeat what I was talking about which I figured they would tell me.

They’re having me come in tomorrow to take a ride with them to see if I can replicate it.

Anything you guys recommend me say or ask or point out or does anyone know what this might be?

Thanks

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[D/\rK•650]

Mine does this little slip thing for split second when shifts from 4th to 5th gear, doesn't do it every time but intermittently does it when hot and when cold shifts drawn out a bit and 4 to 5 slips for a split second. I have the learning functionality turned off and that seems to help a bit and I like that it shifts exactly the same all the time. Also in my research it says that turning off the learning function keeps the transmission in the same state making the fuild pressure at its highest pressure and is always consistent and So far I think i like it better this way. People say these are just like this? I guess we just have to accept it? And when or if it breaks take it in? I don't know how to feel or think about this? I have just kinda resigned to just try and enjoy my car. If it breaks it breaks.