my institution is conducting a multicenter study on OpenClinica where we intermittently experience missing data when running exports. Previously we have associated these with irregular characters in the data set (e.g. ä, ö and so on), but these have been removed from the data set.
Our setup is OpenClinica 22.214.171.124, running on Red Hat Linux Enterprise edition 6.5, and PostgreSQL 8.4.
Any hints would be greatly appreciated!