The monthly leave accrual now accrues
The Monthly leave accrual schedule shipped as a rehearsal. It now accrues for real, once per period, and never past a plan's maximum balance.
Running it twice in a month accrues the month once. An employee at the plan's cap gets nothing; one just under it gets what fits.
To keep it a rehearsal, set the schedule to a dry run under Platform, Batch, Schedules. It stays as you set it.