Dual BIGIP issue

I wanted to do a few labs on BIGIP HA so I installed a two VEs on my laptop. But there seem to be a big issue running two BIGIPs at the same time.

I use the $100 lab license for both machines (two licenses). I grabbed the latest OVA file for vmware today and created the first VE. I added a fifth NIC and booted, run setup, regged license etc. Works fine. But when I boot another BIGIP and it loads Linux the first one becomes unresponsive and reboots pretty much every process it has. It never regains function. This is the console output on my BIGIP-B when BIGIP-A boots:

The same goes for both VMs. If i boot just one of them, it does not matter which one, it works fine. But as soon as I boot the other one, the first stops working.

This is the log from the working BIGIP when it starts acting strange (I put the two lines on top in the log on the working BIGIP before the other one was turned on, to know when the interesting output started):

Both VEs are v13.1.0.6 (Build 0.0.3). LTM is the only provisioned module. The only config on the system is VLAN and SelfIPs. Both VMs are created from vmware OVA file, they have 6144 MB RAM each.

It feels like vmware does not keep the VMs apart fully. Any ideas on this?