It is a type 1. I don't think I have many Type 3. (I have 602 PD and TT font families, but only 70 are enabled). Apple Font Book that manages my fonts does not show any duplicate fonts.
However, if it's being a PS type 1 is a problem, why would it work in new documents?
Those documents were created with ID CS6, I wonder if that is the problem and ID CC and ID CC14 can't translate properly?