transmittion slip from standstill

[cambo]

Hey guys, twice in the last three days now as my transmition slipped from a standstill just brief enough that my rpm's climb to around 2500 then it bangs into gear and away I go, should I be worried? No codes regarding that have popped up but p0263 has which says cylinder 1 contribution/balance has popped up . Thanks for any feedback, Im considering re-installing my dpf and going to the dealership