Then after rebooting them (with "check and upgrade VMware tools before each power on" enabled) the VMware tools status went to "Not installed" on some of the VMs.
It turns out that CUCM, CUC, CIM&P & UCCX are all affected when v10.x of the VMware tools are in use, SELinux interferes with it & the resulting logs can also fill up the free disk space. Full bug details: CSCux90747
There's separate patches for CUCM, CUC, CIM&P & UCCX to resolve this, at the time of writing:
- CUCM & CUC - ciscocm.VMwareTools2016c.cop.sgn
- CIM&P - ciscocm.IMP_VMwareTools2016c.cop.sgn
- UCCX - ciscouccx.VMwareTools2016V2.cop.sgn