folders in public namespace only visable to 2nd folder level in 2.2.29.1

Hi all,

I am currently facing an issue with Dovevot version 2.2.29.1 where subfolders in a public namespace are only visible to the 2nd folder level:

namespace Public -> folder "1st" -> folder -> "2nd" -> folder "3rd" ....

When one user creates a subfolder below the 2nd level other users do not see that folder and are unable to subscribe to this folder. Folders created under the 1st level however are visible and subscribable by other users.

namespace { disabled = no hidden = no ignore_on_failure = no inbox = no list = children type = public separator = / prefix = Public/ location = maildir:/var/vmail/public:INDEXPVT=~/Maildir/public subscriptions = no }

I do not know at which point ( dovecot update ) this issue appeared.

Does anyone face the same problem ?

Thank you for your kind help

best regards Andreas