estimate of transmission software update?

What is your question?

Vibration, feels like intermintent shifting, 2005 kia sorento lx, rwd, when shifting manually goes from 3rd to 1st., almost feels like vaccumm leak, already changed filter, fluid, rear seal. drives good except for this problem, the warmer vechicle is, the more it feels like like air is being sucked in, shifts when supposed to, but, constantly, feels like extra shifting, in between regular passing gears, also, does when just sitting at light idle, and even when on freeway, when it shouldnt, after last passing gear, continually feels like it shifts continously, so aggravating, gets bad enough, to the pt, you dont want to drive. thanks loads , l. Koster

What makes this problem better or worse?

worse as temperature gets hotter,

How long has your 2005 Kia Sorento had this problem?

since july