I have 2 VMs that are failing to get veeam backups, and it appears that the culprit is vmware snapshots. We are running Vsphere ESXi 4.1 build 320092, we have multiple server 2008R2 machines that take snapshots fine, but when with these two VMs when I take a snapshot I get 2 identical snapshots a few seconds apart. The snapshot manager only shows 1 snapshot, but there are 2 files 1 number off, that are identical sizes. There is only one disk on each VM, so that isn't the problem. Has anyone seen this behavior before and know how to fix it?

Here are the files after a bad snapshot

VM-XXX-000001-ctk.vmdk
VM-XXX-000001-delta.vmdk
VM-XXX-000001.vmdk
VM-XXX-000002-ctk.vmdk
VM-XXX-000002-delta.vmdk
VM-XXX-000002.vmdk
VM-XXX-2a659dbf.hlog
VM-XXX-2a659dbf.vswp
VM-XXX-Snapshot286.vmsn
VM-XXX-aux.xml
VM-XXX-ctk.vmdk
VM-XXX-flat.vmdk
VM-XXX-vss_manifests286.zip
VM-XXX.nvram
VM-XXX.vmdk
VM-XXX.vmsd
VM-XXX.vmx
VM-XXX.vmxf
vmware-20.log
vmware-21.log
vmware-22.log
vmware-23.log
vmware-24.log
vmware-25.log
vmware.log

VM-XXX-000001.vmdk and VM-XXX-000002.vmdk are the exact same size.