Coming back to the original question of this thread, "Are Masters Ever Wrong?"
All masters are also still human beings. - Not speaking of any masters who might have fallen from grace in the eyes of a general public here.
If they are true masters, I found they can still be wrong.
This is an agreed-upon fact, I also became aware of when asking my personal masters about this.
They can especially be wrong (I have found), when it comes to general future predictions regarding world matters, and sometimes also their own fate, like giving their own date of demise, years ahead of the time.
What this shows (to me) is, that predetermination and living karmas aren't always in line, and there is always a potential for an adjustment of one's life conditions, i.e. to live longer than previously felt, or die earlier e.g.
General future (world) predictions seem to be much more of an unpredictable mess in this regard.
Speaking of this, although we all here might have felt that a true master can read ourselves like an open book, the omniscience-part in SAT-CHIT-ANANDA (truth-consciousness-bliss) may well be somewhat different than what meets our eye on our first intellectual glance, which our own (untrained) minds are able to grasp from early on, especially when we blindly believe in omniscience of a true master.
Just my 2 cents.
I would add one important factor that Amma (a true Master) put in the equation; God’s Grace. An unpredictable phenomena that is rather arbitrary from a human standpoint. Although, in all predictions and events taking place in the world, including personal events, Amma advised to pray for God’s grace.