Note #3 here explains why extraction failed with the recovery ride –
You can seed your account by syncing more historical data that includes maximal efforts that indicate BTs (circles on your progression chart), or generate a current BT, or enter known power curve values here – Xert - Power Duration (xertonline.com)
You can also manually adjust signature values by viewing your most recent BT effort workout/activity as linked under your name on home page of XO. You can make changes and save them there.
Lots of newbie tips in this thread if you haven’t already seen it –
Beginner questions - Support - Xert Community Forum (xertonline.com)
Complete Academy series videos –