Is anybody else getting frozen in your necramech completely in Sisters of Parvos. I find this happen when the little cutscene when they appear to greet/trashtalk you. You can't even go into spoiler mode or back into your warframe. The only way I've found that seems to fix it is either to have enemy shoot you until your necramech explodes which is quite unlikely as every enemy will probably be dead, or just to abort mission and start all over again