Searching shared folder in Proxy Mailbox throws Error d126

Hello there,

Can someone confirm that on Build 122810 the following error occurs?
This does not occur on an older Build 120664, just as an info.

Reproduce steps:

  1. Share a folder of any Mailbox
  2. Allow Proxy access to this Mailbox
  3. Login with another user who has Proxy-Access to this mailbox
  4. Go to the earlier shared folder
  5. Search anything in there

    When done so we get an error called d126, I've searched a bit around but it seems to be a rare error. Some suggested a structural rebuild and database check which I've done already, nothing changed tho.

    Here's the (german) error message I get: