Group Reporting Data Monitor Release Universal Journal error G0256

Morning

In Data monitor for periods 1-7 the release universal journal task works as designed. From periods 8-10 the release universal journal task is marked as task irrelevant and I recieve an error of G0256 'task has no meaning' if i try and run through the ribbon. Periods 11 and 12 go back to working as intended.

Has anyone else come across this?

Thanks

Mike