AEM Sidekick all components disappear/blank for Events

Issue:
Clicking on the target button in External Component makes AEM Sidekick components disappear and look blank

Environment:
Adobe Connect Hosted accounts

Steps:-
1) login to the hosted account
2) Click on Event Management Link
3) Click Edit Event Template
4) Drag an External Component from AEM SideKick
5) click on Target Button
6) Refresh/Reload the page

Unexpected Result:- SideKick components disappear
Expected: AEM Components should be visible

Note: This has been logged as a known issue Bug#CONN-4088202 (9.7.2), slated for a fix in Connect 9.7.5