Informix Time Series Datablade Error

Hi, I'm running the informix time series datablade version 4.01 with version 9.3 of the Dynamic Server on a Sun Solaris E3000. When I try to update a time series column in a table using the API routine mi_exec_prepared_statement, the following call to mi_get_result gives me the following error: Error: -9636 opaque type exceeded its maximum length. I understand that the time series row type is opaque. This is a strange error as all I am doing is modifying the fields of several time series elements, I'm not adding an additional element to the time series, and I can extract the original time series fine from the database. Even if I do not modify the time series elements, so I simply extract and put back the time series I get the same error. I'm baffled. Does anyone have a suggestion? Thanks, Steven