wrong training load after edge 840 update

hi to all, I have fr 745 and an edge 840, both updated to last version, currently I log activities only with the edge, and every day the training load is reset to 0 (yesterday it was above 900) and also training status is reset every day to detraining. the only solution is to turn on the edge and synchronize it. do you have any idea why? Thanks

here are the screen

https://imgur.com/a/s0DxQzp