ACL Editor: Role not displayed at all

Steps to reproduce:
1. Go to http://octestallinone.virtuos.uos.de:8080/admin-ng/index.html#/users/acls
2. Press "Add access policiy"
3. Enter title and go to next tab
4. Select template "Public"

Actual Results:
The role of the first ACE is not shown (see screenshot). While the role is shown in the next tab (summary), it is not possible to see it later anymore, i.e. when editing the ACL, there is no way to see what role that ACE is for.

Expected Results:
Always show the roles of all ACE

Workaround (if any):