Default access to pdf widget granted, access to other widgets denied

Hi !

Here is a summary of my problem/question :

Xibo 2.1.0
1 User Group
2 Users in this Group

Permissions setting set to “Group Delete” so that members of the same group have all the permissions on the other group members’ layouts (am I right ?)

User 1 creates a layout with 4 régions, 1 widget each :

  • 1 pdf (fresh transfer, not already present in library)
  • 1 picture (fresh transfer, not already present in library)
  • 1 video (fresh transfer, not already present in library)
  • 1 weather

No specific permissions granted on the layout. Just the global “group delete” setting set.

User 2 opens the layout :

  • He can see and delete the pdf widget
  • He can’t see or delete the picture widget (access denied)
  • He can’t see or delete the weather widget (access denied)
  • He can’t see or delete the video widget (access denied)

User 1 grants all permissions to the group with cascade option ticked
User 2 now can see and delete all the 4 widgets

It seems like pdf widgets are not treated the same way than the other widgets by default. Why ?
Why is the behavior different depending on the type of widget used ?

Thanks by advance.