I've just reviewed today's footage, and there's no hint of jitter in the video at all - but it's a different SD card. Although both cards are identical sandisk Ultra 128Gb.
Hello there mkdp.photos. I am sorry for the trouble this has caused and thank you for reaching out. Kindly please try using a different recommended microSD card on your DJI Mini 3 Pro for us to be able to isolate the issue. For reference I will post the list of microSD card for the DJI Mini 3 Pro below. Thank you.
I also had that but recalled a post by DAFlys mentioning this issue with autofocus. I changed to Manual Focus and video was clear again, no issues. Seems like the last FW update did some silent damage.