I only just now realized that they changed Echo’s armor to match the rest of the Bad Batch instead of sticking to the white one he got in TCW season 7.
It’s hardly a new thing that exact timelines can be a bit confusing and/or inconsistent with SW, but some of the lines from the last episode (especially Echo’s line about the smell in their quarters suggesting that he’s been to Kamino with the Bad Batch at least once before), as well as how the Siege of Mandalore in the TCW season 7 finale is meant to connect to ROTS, makes me wonder just how much time is supposed to have transpired between the Bad Batch TCW arc and the Bad Batch series.
The first two arcs of TCWS7 were always supposed to kick off the series but the middle sections were filled by up to 10 arcs so there was probably at least a couple of months considering the conflicts that dominated were the Outer Rim ‘Sieges’ (i.e. events that take a while).