There's currently an issue in the Android Twitter app that is preventing audio cards from playing normally. This means that listeners on Android devices may not be able to play your segments if shared inline on Twitter. (Note that Twitter on iOS is not affected, and Anchor playback elsewhere is working normally.)
We're working with Twitter to resolve the issue ASAP and will make an announcement when it's fixed!
Because this only affects playback of specific segments embedded in tweets, one workaround in the meantime is to share your full Anchor station URL on Twitter; listeners will be able to click through and listen to your station in their desktop browser or in the Anchor mobile app, so they can bypass this issue. You can also share episode URLs!