KEY_FLEX_FAIL on first run of PA concurrent request

Some PA concurrent requests (e.g. PRC: Distribute Usage and Miscellaneous Costs, PRC: Distribute Labor Costs for a Range of Projects, PRC: Create and Distribute Burden Transactions for a Range of Projects, PRC: Generate Cost Accounting Events) have the following problem:

 

- the output contains KEY_FLEX_FAIL

- the logfile contains Warning in Flex Validation for line... followed by an unreadable line, like é t¿¿¿¿ž or (=I__çÿ¿è_·(=I_

- it occurs only when a new record in gl_code_combinations needs to be created

- on running the concurrent request again, everything works fine (no KEY_FLEX_FAILs)

- the new gcc-record's last_update_date is the date and time of the FIRST run of the concurrent request