I am not surprised that your virtual network behaves strange.
You renamed or labelled your vmnet5 to vmnet10.
Do you really need to do that ? - if you specify vmnet10 in any of your vmx-files strange behaviour is to be expected.

I would suggest suggest to review your vmnets and do some housekeeping.
Please attach vmware.log and the vmx-file of your misbehaving VMs.

Ulli