Multiple Activities were created everyday in IP 21

Hi Team,

In IP 21, everyday some 35k activities are created with each user and is kept Open,

activities have CAL_TYPE_CD = Calendar and Activities; when query these activities in UI, it is not visible in Activity Screen, only see in DB.

Below is seen in logs, multiple times.

ObjMgrBusServiceLog  FireEvent            5             0000465562bf45ca:0       2022-07-07 08:30:09      Business Service '' (a055a280) referenced - reference counter = 1 IsCache: 0

ObjMgrBusServiceLog  FireEvent            5             0000465562bf45ca:0       2022-07-07 08:30:09      Business Service 'Calendar Repeating Event Business Service' was created at a055a280

ObjMgrBusServiceLog  Create 4             0000465562bf45ca:0       2022-07-07 08:30:09      Business Service 'Calendar Repeating Event Business Service' (address: 'a055a280')was regsitered at model '94b93918' for session ''