I created a PM action with a default calendar end date of 12/31/2030 and configured the relevant object properties. I also set the PM_PLAN_HORIZON to 2030. However, even with this setup, the maintenance plan that was generated is not exceeding more than 2027 (specifically it stops at 09/09/2027), despite the calendar and PM_PLAN_HORIZON being set through 2030.
I have also refreshed the cache, yet the maintenance plan continues to generate only up to 2027. Could you please confirm if there is anything I may have missed in the configuration?

Maintenance triggers:-

Default Calendar:-

Object Properties:-
