3 4 meter, snap to quarter note triplet:   you can't place a quarter note triplet beginning on the second beat.     I rarely use snap except for very small intervals but for a rapid sequence of quarter triplets just tried to use it .. no dice. 

I'm not seeing a problem in Newburyport. Which view, which tool, what duration, and what else is already in the measure?

What view are you adding these notes Staff, PRV?

A quarter note triplet snap grid that starts at beat 1 in a 3/4 meter bar will not and cannot intersect beat 2.   This is NOT a bug...it is a matter of pure math that a 3/4 meter contains 4 quarter note triplets and 1 eighth note triplet remainder.
 
You have to set the snap grid to an 1/8th note triplet in order to have the grid intersect beat 2 of a 3/4 meter bar.
 
-- Ron

SquireBum
It is a matter of pure math that a 3/4 meter contains 4 quarter note triplets and 1 eighth note triplet remainder.
 
You have to set the snap grid to an 1/8th note triplet in order to have the grid intersect beat 2 of a 3/4 meter bar.
 
-- Ron

This is my understanding as well.

So please edit the thread title accordingly.

Assumed he meant triplet 'beat' 2.