Calendar print doesn't work in OWA from Exchange 2019 CU14 onwards

Symptoms 

Consider the following scenario: 

• You install the Microsoft Exchange Server 2019 CU14 March 2024 security update (SU).

• You open a mailbox in Outlook on the web (OWA).

• You open the Calendar and then select the Print icon to preview the content.

• In the Print window, you select the Print button. 

In this scenario, no print job appears on screen.

Resolution 

To fix this issue, install the following cumulative updates, as appropriate:

• Cumulative Update 15 for Exchange Server 2019 or a later cumulative update

• Hotfix update for Exchange Server 2019 CU14 HU5: May 29, 2025 (KB5057652)