Hi! I’m sorry to hear that your Strava data has gone missing after the update. To better assist, could you tell me if this missing data is for all your activities or just recent ones? Also, are you using the Strava website on your Windows device or the app on another device?

Sometimes, data may temporarily not show due to syncing issues after an update. Here’s a simple step-by-step approach we can take to try to recover or see your missing data:

1. Refresh and Log Out/In: On your Windows WebKit browser, try logging out of your Strava account and logging back in. This can prompt the system to refresh your data.

2. Check Internet Connection: Make sure your internet connection is stable since syncing requires good connectivity.

3. Try Uploading a New Activity: If you have a new activity (for example, a recent workout), try uploading it manually. This can sometimes trigger syncing of pending or missing data to your account.

4. Clear Browser Cache: Sometimes cached data can cause display issues. Clear your browser cache on WebKit and reload Strava.

5. Browser Version: Ensure your WebKit-based browser is updated to the latest version to avoid compatibility problems.

If you have tried some or all of these already, please let me know which ones, and we’ll dig deeper into the issue. It’s also worth verifying that your activities aren’t just hidden by a filter or privacy setting.

Would you like me to guide you through any of these steps?