Update: Weekly Stats 
There were some errors in the calculation of weekly stats (total XSS, weekly hours, etc.) that included past planned activities into the final calculations. I can assure you this was just a visual bug in the front end and didn’t have any impact on the training/recovery calculations - those are handled in another function elsewhere in the code 
However, we’ve made a change that should address those issues!
Update: Merging Activities 
We’ve noticed that some folks are having trouble merging multiple activities together. This might be due to a technical snag if you’re syncing data from Strava. The feature is designed to combine two .fit files. The problem is that Strava doesn’t actually send us the .fit file, so we can’t merge activities that come to us from Strava. We’re looking into whether there’s anything else we can do about this.
For now, the best way to go is to check that your training platforms sync the original activity file directly to Xert. If you’re using Wahoo, Hammerhead, Zwift or similar, make sure your finished activities end up directly in Xert, rather than syncing them to Strava and then from Strava into Xert.
By doing this, you should be able to merge the two activity files in Xert and then send the merged activities to Strava as one complete activity, if you’d like.