exception with the type CX_SY_DYN_CALL_ILLEGAL_FORM NEW_VALUES_GET Can not find Form

Hello Gurus,

I've an issue during loading Data from InfoCube to another InfoCube (Selection on Calmonth). (Same error if I execute a Query in BEx)

I get the Errormsg "Could Not find the Form NEW_VALUES_GET"

I have a selection on 0Calmonth to build time dependent slices. I'm  wondering because to the first InfoProvider load without problems. But to the last InfoProvider I get this error msg above.

SAP BW System:

Is this a bug or smth.?

Thx for hints.

regards,

André