The customer noticed that events on his ServiceDesk Calendar are no longer displayed:
Before this issue started to happen, this is how the calendar used to display its events:
No changes regarding permissions with the account used nor issues connecting to the database. The "CalendarEntry" table seems to have all those events present.
ServiceDesk 8.5 RU4, 8.6
Workflow 8.5 RU4, 8.6
Querying the database under the "CalendarEntry" table, the customer had approximately 18000 calendar entries.
In the background process when loading the Calendar page, it was noticed a HTTP error 500 with no extra exception logs anywhere (only JS debugger showed the real exception message) .
The root cause is that .NET JsonSerializer by default limits the response length to 4MB
Try the following to resolve the issue: