Event delivery to applications might delay indefinitely due to a race condition in the VMKAPI driver. As a result, the virtual desktop infrastructure in some environments, such as systems using NVIDIA graphic cards, might become unresponsive or lose connection to the VDI client.
Resolution
Update to ESXi 7.0 U3c BuildĀ 19193900.
Workaround: Roll back to the previous version of ESXi prior to this ocurring.