No file and text copy with RDP clipboard (Sandboxie 4.x)

[xsilon]

If you connect to a remote computer via RDP and starts on this a Windows Explorer in Sandboxie version 4.x, then no copying files over the remote session to the local computer is possible. Since it was still possible with Sandboxie 3.76, it must be related to the changed security model.
When you start an RDP session, Windows starts the process "rdpclip" on the remote machine (see [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\Wds\rdpwd] "Startup Programs" = "rdpclip"). Rdpclip.exe (RDP Clipboard Monitor) is responsible for managing a shared clipboard between local host and the remote desktop.
Run this process outside of a sandbox, so file copy operations within the sandbox are not recognized. I cannot copy files (eg downloads) from the sandbox with the RDP clipboard to a local folder.
Only when i terminate the process outside the sandbox and restart rdpclip.exe new within the sandbox, i can copy files with RDP. But this workaround is very cumbersome.
Is there a way to solving the problem?