Qf 17-18

[Wayne Bee]

A work mate has just come back from Rio and was due to fly QF 18 back from Buenos Aires last Saturday and were informed that due to Buenos Aires Controllers the inbound fight was not cleared to land and went to Montevideo instead. When the aircraft did get to Buenos Aires they were informed that a further delay to the depature till QF got a CASA ruling on something.

Any one know why the aircraft went to Montevideoand is this the normal alt for this flight?