Summary:

An issue may arise where users may see duplicate tasks assigned. These duplicates are visible in the Calendar; they are not visible when the calendar is set to List View.

In the list views, the duplicates do not appear, however the company names are missing from the task.

Cause:

The issue was caused by several duplicates being present in custom captions for comm_priority. The query to check this is as follows:

select * from custom_captions
where Upper(capt_family) = 'COMM_PRIORITY'
order by capt_createdDate desc

Hard deleting the offending Custom_Captions records in the database resolved the issue.