The snippets you see on the web are the “true” snippets.
If the snippets you see in your TextExpander app and in your TextExpander.com account don’t match, check if there are any “Conflict” groups in the app. If that group has any recently edited snippets, copy the recent changes into the original snippet, or, if there are entirely new snippets drag and drop them into the correct group. You may then delete the conflict group. Then sign out of the TextExpander app and sign back in.
If that doesn’t help, sign out of the TextExpander app, quit and restart the app, then sign back in as your final step. This will ensure your snippets match the server.