Sharepoint Calendar not syncing with Powerapps

[Alois]

Hi all, 

As the title suggest, my powerapp stopped syncing with the sharepoint calendar database out of the blue. Users are able to create new events through the app. However, it is only reflected on sharepoint online but not in the app. I have refreshed the datasource in powerapps but to no avail. Anyone has any idea to fix this issue?

Attached visual reference for the 18th. 

Regards, Alois

[Alois · Accepted solution]

Ok fixed. Turns out it's the delegation issue. The solution was to go to advanced settings in powerapps and increase the limit.