Currently the ID point matching for MT events is done by 'first match' algorithm.
Calculation is done according to point distance.
For example lets say we got 2 points with distance 15,17 and the mapping is:
'15' -> ID 1
'17' -> ID 2
Now we get 2 points with distance '16', '15' the mapping will be
'16' -> ID 1
'15' -> ID 2
instead of
16 -> ID 2
15 -> ID 1

In order to avoid that problem its require to always search for the minimum distance value before match