Attaching new GP PAYGROUP to already finalized on-cycle AM calendar group

Hi Team - We are running into a scenario where, an employee had new GP pay group attached on JOB effective 1-Feb-22. This was newly created GP pay group which was missed to be added to the semi-monthly GP calendar / calendar groups. Employee submitted absences in the month of Feb-22, which created retro triggers. We executed 1st and 2nd semi monthly GP calendar groups but as the new gp pay group was not added to the calendar/ calendar group, the absences submitted by employee were not processed. The retro triggers were created but they remained in 'UnProcessed' status. Through