can't install due blank "Use an existing account" dialog

Steps:

1. download installer for win (i tried all versions 2.0 and higher, haven't tried any older )
2. run installer, in step "Atlassian account" click "Use existing account".

Expected:  some form to fill it up. Any way how to login to account or skip this step.

Observed: got new blank dialog with no fields. Can't proceed in installation.

if I can provide any additional info, logs, screenshots. Please let me know.
I can also try it on different OS from within our company network, if needed.

Also please let me know if there is any workaround available. Thanks.