'anguylar' is undefined

Welcome screen gave error: "angular is undefined" after update 3

Hi.  I installed X7 (subscription), then  updated 1 and 2 and no problems. After I update the 3th update, the welcome screen didn't work at all. I get an error message: Angular is not defined. I reviewed and uninstalled X7 64bits because my javascript is 32bits, the same issue. Opened a support case with Corel and they washes their hands telling me this is not a Corel problem but a Microsoft (IE) one

I upload several images with the whole process I just mentioned: https://app.box.com/s/hy5uaaasl36slapkbqzk

Any idea is really appreciated

Regards