Issue parsing MaturityMonthYear

[TheMiracleExpress]

I'm having an issue with the UDP MDP client where the MatruiryMonthYear field on
the SecurityDefinitions (MDInstrumentDefinitionFuture54) are returning
invalid month values:

MaturityMonthYear=2026/241

Is there any special handling needed before reading this field? My current code
uses:

SbeMonthYear monthYear = SbeMonthYear.instance();
mdpMessage.getMonthYear(200, monthYear);
short month = monthYear.getMonth();

I seem to either get a value of zero or 241