'Open a virtual machine' not working

I have a virtual machine copied over from another hard drive in Linux. If I navigate to the folder and double click on the .vmx file it will launch around 50% of the time. If I use 'Open a virtual machine' in VM Player nothing happens - it doesnt open and it doesnt appear in the list of VMs.

I would like to add the VM to the reglular list, and open like normal.