Problem with extra unwanted Videos being posted on FB

urzkg1 wrote:

When I post a single video on FB, from my photo album, to FB what’s on my mind, I get multi videos posted. It only displays one video in the post, but after the intended video plays a random video, from my album, follows up and plays. I’m not comfortable posting a video because I don’t know what will follow my posted video. Nothing I tried ( delete & reload, copy video and load copy) has worked and it still posts a unwanted video after my intended posted video. My iPhone 13 Pro is updated.

This has nothing to do with Apple or your iphone 13 You'll need to address it with Facebook or look at their help center.

Go to Settings > Privacy & Security > Photos, and check if Facebook has access to your Photos Library. If you allowed Facebook to access any information on your iPhone, including your Contacts, you can count on them to take advantage of any permissions given.