Hour meter transaction group problem with execution scheduling: schedule

Hour meter transaction group work problem with execution scheduling: Timer Fig1 is working but there is a slippage in time of the next execution.

Then i try to change a execution scheduling: schedule Fig2 and have the next mesagge Unknown, waiting for execution, What am I setting wrong? or what do I need to configure?
[Understanding Transaction Groups - Ignition User Manual 7.9 - Ignition Documentation]

Ok, Hi everyone, the transaction group execution scheduling: schedule works correctly, the transaction group is waiting for the closest of the times set to start working, once it has been completed it has already started its normal operation.

Regards. Gerardo Garcia