Packet capture shows only one side of the network traffic

[Nadiel]

Hi,
I am not sure what I am doing wrong but after upgrading my VBox to 5.0.12 from 4.x (I do not remember what the exact version was) I cannot see the network traffic from the host to the guest but the other way. I tried two guests, Ubuntu 14.04.01 and Win7 Pro, too, but I have the same problem with both. I am using bridged adapter setting. I tried web servers and websocket endpoints so there was two way traffic for sure. When I realised that something goes wrong I upgraded my Wireshark, too, but that did not solve the problem (Wireshark 2.0.1, WinPcap 4.1.3). The host is 64-bit Windows 7 Ultimate Service Pack 1.
Could someone use Wireshark to confirm this issue?
Thanks,
Daniel

[frank]

How do you capture the network traffic?

[Nadiel]

Simply selecting the only enabled interface (GigaBit LAN Connection) on WireShark UI.

[noteirak]

Please read Minimum information needed for assistance and provide as a zipped attachment the VM log file and the guest settings.

[Nadiel]

I attached the VBox.log.
I made two captures at the same time. One with using VBox (VBoxManage modifyvm {cad37937-8254-40cf-b820-ccd0edce522b} --nictrace1 on --nictracefile1 c:\ubuntu.pcap) and one with using WireShark. The first one shows both ways of the network traffic the second one only one way of it.