You have noticed that "standalone replication rules" stopped working.
Apparently, these schedules are no longer among Windows task schedules (in Task Scheduler), thus never getting triggered.
NS.Weekly schedule task does not recreate them despite rules being enabled.
Changing the schedule (such as shift by a minute) does recreate the schedule and the rule continues working just fine.
Steps to reproduce:
ITMS 8.7.x
Known issue. After the fix, the schedule should be gone from Windows, and enable should return it back as well as overall rule "enabliness".
This issue has been fixed with our ITMS 8.8 Release.
"Standalone replication rule" schedule appears in Windows Task Scheduler after enable rule again.