Need help, I have an issue with ESXi 6.7, I am running a bunch of RedHat VMs, and frequently I am facing issues where the VM will not boot. it will just start with just a _ prompt and won't go anywhere. no error message just boot straight on _ prompt. sometimes it happens even with a freshly deployed OVA. sometimes If I tried to upgrade VM tools to match the host it will suddenly boot even if the process complete with an error (there are errors with remediation operation. check the events and logs for details.) but the issue will happen again either when restart or make any modification such as adding memory or CPU.