Today T3 rec and T2 rec fractals were Mai Trin. I think there is a bug, it should be the T1 rec too.
Rec are supposed to be a different one for each tier at least that is how they were before the most recent addition. They seem to mess these up every time a new fractal is added.
Recommended fractals are random for each tier (and usualy are completely different, i can;t really remember if i ever saw duplicates there - if it can happen normally, it is almost certainly very rare). If t2 and t3 end up being the same fractal, it's purely by accident, not by design (and, as i said, should be considered to be unusual). T1 being different, on the other hand, is completely normal.
The whole point of a social game is to play with the people you want to play with, not be forced to play with the people you don't.