https://community.sinch.com/t5/Contact-Pro/Important-Microsoft-update-KB5094126-affecting-CDT/m-p/19655#M634 <P>For Contact Pro on-premise customers who are using Communication Desktop (CDT)</P> <P>&nbsp;</P> <P>We want to inform you about a known issue regarding the recently released Microsoft Windows update KB5094126. Based on current knowledge, Communication Panel or other user interfaces are not affected.<BR /><BR /><STRONG>What is the issue?</STRONG><BR />Following the installation of Microsoft KB5094126, we have received reports from users experiencing unexpected side effects within the CDT interface. Specifically, the update breaks audio player functionality, <SPAN data-teams="true">resulting in users being unable to listen to recordings and their voicemails directly within the application</SPAN>. The change could affect other functionality as well. If you have any concerns after installing the KB,&nbsp; let us know.<BR /><BR /><STRONG>Current recommendation</STRONG><BR />While development is working on the topic, we strongly recommend avoiding or pausing the deployment of KB5094126 on all workstations running the CDT application.</P> Thu, 25 Jun 2026 09:36:32 GMT Nina_Makkonen 2026-06-25T09:36:32Z https://community.sinch.com/t5/Contact-Pro/Important-Microsoft-update-KB5094126-affecting-CDT/m-p/19655#M634 <P>For Contact Pro on-premise customers who are using Communication Desktop (CDT)</P> <P>&nbsp;</P> <P>We want to inform you about a known issue regarding the recently released Microsoft Windows update KB5094126. Based on current knowledge, Communication Panel or other user interfaces are not affected.<BR /><BR /><STRONG>What is the issue?</STRONG><BR />Following the installation of Microsoft KB5094126, we have received reports from users experiencing unexpected side effects within the CDT interface. Specifically, the update breaks audio player functionality, <SPAN data-teams="true">resulting in users being unable to listen to recordings and their voicemails directly within the application</SPAN>. The change could affect other functionality as well. If you have any concerns after installing the KB,&nbsp; let us know.<BR /><BR /><STRONG>Current recommendation</STRONG><BR />While development is working on the topic, we strongly recommend avoiding or pausing the deployment of KB5094126 on all workstations running the CDT application.</P> Thu, 25 Jun 2026 09:36:32 GMT https://community.sinch.com/t5/Contact-Pro/Important-Microsoft-update-KB5094126-affecting-CDT/m-p/19655#M634 Nina_Makkonen 2026-06-25T09:36:32Z