ESXi 6.7 9484548 and 11675023 too, running on Supermicro SYS-5029S-TR installed to 32GB SSD Supermicro SuperDOM SATA.
Standalone host without vCenter
Monitor Performance charts in the Web Client disappears every 2-10 minutes.
http://alpha.fm/pub/capture_9364624.png
Looked at logs - only one significant warning there: "Size of scratch partition is too small. Recommended scratch partition size is 4488 MiB."
I am transfered scratch to vmfs datastore - no changes.
No another problems with this server, VMs works fine.