Non-A-body 46re q’s

I have a couple of vehicles with the 46"rE".
The one on my 96 Dakota isn't slipping a bit but is shifting funny sometimes but not always. . sometimes even when I feather the gas as light as I can, it refuses to shift until 3200 rpm. Sometimes it hits hard when it does shift sometimes not. Sometimes it shifts like I don't have the kickdown attached and is in 3rd by 20,
Sometimes I get into it sorta heavy and it shifts by 2000 rpm, sometimes it really slams 4th, sometimes it doesn't. This it does probably 1/4 of the time and not usually on consecutive times of shifting thru the gears.
It has 255k on it, but was rebuilt when I got the truck 85k ago. Fluid looks like just out of the bottle

I don't drive it every day anymore except for winter the last few years (its 4wd) I drive it occasionally the rest of the year.
I've had to drive it to work all week as I left my other truck to sit at the alignment shop all week until the guy could squeeze it in. Only way I don't have to wait 3 weeks to a month to get it in with him...
Just got that one back yesterday.
I remember the Dakota shifting funny 1 other time in the past, but seems like it acted differently than it has this year. But it was more consistent in how it was shifting that time. That time the spring either broke or fell off on the kickdown at the trans. I haven't gotten around to getting under it recently to see if that might be the case this time....
It wasn't doing what it's doing when I last daily drove it at the end of this past winter, it's started it since then.