Service not implemented: ConnectPort

[Wolfspirit]

Hi,

Whenever I want to start any program sandboxed I get the error:
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)
SBIE2205 Service not implemented: ConnectPort (19/C0000022)

What is causing this?
Is this caused by my AV maybe (Sophos Anti-Virus)?
Can this be fixed somehow?
I read about enabling hardware access but can't find this option in the current Sandboxie version.

EDIT:
I noticed that this issue vanishes if I add following IPC to the direct access list:
\RPC Control\plugplay

Does that open a security hole?