Suddenly Training Sttatus = No Status

Hi guys,

After my usual morning training today ( https://connect.garmin.com/modern/activity/2423644617 ), which actually has include a FTP increase recommendation by Xert, I got a "no status" at Training Status and the watch asked me to "run outside once or twice" ... GCM also shows Current Status as "no status".
Has anybody else got this?

Thank you,