Mobile players are soft locked from finishing the main story - 'Sacrifice' quest

Apologies Tenno, we are aware of this UI bug preventing players from getting through The Sacrifice. It appears to be impacting touch controls only. We have eyes on the issue and will address in an upcoming hotfix, but one workaround for the time being is using a bluetooth gamepad / controller (if you own one). I've added this to our Known Issues List. Thank you!