Unable to retrieve the session collection properties

hi,

we're facing following issue while trying add new remote desktop session hosts
session host collection  : "unable retrieve session collection properties".

server can added deployment can't added session host collection , message above
returned. error never happened before , ennoying need deploy more servers/collections.

collegue noticed adding couple of servers @ once (from gui) succeeded ...
can't find related on eventviewer (brokers / database server)

known bug ? can't find related on microsoft support.microsoft.com
appreciated, thanks.

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mcts windows server virtualization, configuration

hello,

rds session collection settings configured allow  : 
- domain local security group
   (that usually have members different global security groups containing users ...)
and
- global security group (domain admins)

removing dl_xyz... domain local group session host collection settings solves issue can add new rdsh collections
=> can't figure out can't reproduce problem if readd same dl... group on session collection settings

issue unablity add session host or create/edit remoteapp(s) on session host collection.

important works again  

mcts windows server virtualization, configuration

seem security descriptor corruption
@ session host collection settings level
have been fixed reapplying user/group access settings collection.

Windows Server  >  Remote Desktop Services (Terminal Services)