same thing happend at rank calculating after the server res.

[anticitizen81 0]

i got 420k honor last week and only 96k honor progressed and i start with 330k honor to the new week and lost %5 rank progress. i am really getting bored about this
https://i.hizliresim.com/JlQp8W.jpg

[Hudson 16]

It looks like more of an addon issue to me. Try disabling them and checking your honor.