Double-check all modules: Ensure you've completed every module, project, and superbadge in the trailmix. Sometimes a small item might get missed.
Refresh your browser: Log out of Trailhead, clear your browser's cache and cookies, then log back in. Sometimes, the progress might not update properly until you refresh.
Check for new content: Sometimes, Salesforce updates trailmixes by adding new modules or projects. If that's happened since you started, you might have new content to complete.
If you've done all these and it's still not showing as 100%, it might be a glitch. Reach out to Trailhead Support, they're usually pretty helpful with issues like this. Good luck! Please give a like if my suggestion is helpful to you.
You can reach out to Trailhead team who can help you with these issues using the below link.
Support:https://trailhead.salesforce.com/help
Please close the thread by selected as Best Answer so that we can keep our community clean
Thanks,
Here are a couple of things you can try:
If you've done all these and it's still not showing as 100%, it might be a glitch. Reach out to Trailhead Support, they're usually pretty helpful with issues like this. Good luck! Please give a like if my suggestion is helpful to you.