Outbound packet directed to a VM aren’t captured

Hi, I'm running a VM on my host, its network configuration is bridged networking (virtualbox). I'm testing an application that sends packets on host and guest. It's basically a ping and a response. I have wireshark on both host and guest, on the guest it captures properly the packets sent and received to/from the host IP, but on the host wireshark doesn't capture the packets sent to the guest IP (they exist, as they are captured as inbound packet in guest). Maybe the bridged networking configuration conflicts with winpcap? If I'm right, is there any solution? Thank you