Per-post Cross Posting

I set up cross-posting to Mastodon from my main feed. I don’t see any checkbox for Mastodon in the web post settings or the Mac app. When I click on “Show Cross-posting” nothing appears. Should I be able to pick which posts do or don’t go to Mastodon?

I have this problem too. I’ve tried on Safari, Firefox and Edge (all on MacOS Ventura) and I don’t see anything when clicking the cross-posting option. I do, however, see the UI shift as if something loaded, it’s just not there.

I disabled all my privacy blocking plugins, but it’s still the same. Looks at the source, the “thing” that appears is:

<div class="form-group" id="posting_services" style="">
     <div class="col-sm-12">