Release : 15.7.1
Component : CA PPM INTEGRATIONS & INSTALLATIONS
This is logged as DE53192 and resolved in 15.8 and 188.8.131.52. Please note that IE 11 is not supported with New UX as they may be unexpected problems.
Check out the full information here:
Section Internet Explorer 11 Not Supported for New User Experience Features
As workaround we suggest to use another browser instead.