Have you tried unlinking and reconnecting Wahoo Cloud to Strava? I wonder if the issue is with the connection instead of the device.

https://support.strava.com/hc/en-us/articles/218366788-Wahoo-ELEMNT-and-Strava

Yes, I tried this but it didn’t change anything.

If you open the ride in the companion app, use the “Upload” button and tap on the Strava symbol: Do you get an error message?

The companion app seems fine, it synced the routes to the ELEMNT and the ride I just did seemed to go over the app.

Today it worked, I didn’t change anything on my end.