Offline doesn't matter (event towers, regular gameplay) the first 2 times I got banned I was ranked 1 and 2 in FW, third time i was ranked 12, this last time I was ranked 18.
Stay away from FW for now... ive been playing all day with this setting... also turn off autoplay. The game is still very glitchy though. Test for force close in battle mode first.
Playing for 4years... I use mod in FW always usually in top 20. I spend souls and in game coins to lvl up quite. I saved 16000 souls waiting for Rain pack. This was 1 week before Lui Kang update video.