I don't think it is isolated.

Also UPS has let me down. Just when you get used to a certain delivery time.... It all goes to pot. A week late. I had one package of 6 that went back and forth between Cleveland and Denver 6 times before it went in the right direction out of Denver. It arrived almost two weeks later than the other three packages.

UPS can be tracked with a complete history but I'm sure TT wouldn't give you a tracking number.

Enjoy,

Jim