Yeah I am getting this problem too. However, I have guildies who are using Pratt and not having the problem. I have also gone through settings in Pratt and disabled some and still same problem. I have tried to reinstall Cellular. Also backed up my WTF and deleted it and started with all clean luas and still same problem.
just an update: I disabled Pratt and worked ok. I then tried to just enable the modules my guildie had enabled in Pratt (I had one or two extra ones to him) but no go. not working. we are on same version of Pratt. Also noted that I had keybinding of shift-r for rewhisper where his was blanked. i blanked mine and still nothing